RRB NTPC CBT 2 2017: సమాధానాలతో ప్రశ్నలు

Rani-ki-Vav, an 11th-century stepwell built in memory of the Solanki king Bhima I, is at Patan in Gujarat. It became a UNESCO World Heritage Site in 2014 and is pictured on the ₹100 note.

Each letter is paired with its alphabet position, skipping one letter each time: C-3, E-5, G-7, I-9. The next two are K-11 and M-13.

Japanese biologist Yoshinori Ohsumi won the 2016 Nobel Prize in Physiology or Medicine for his discoveries of the mechanisms of autophagy, the way cells recycle their own parts.

Statement II gives Neeraj < Pavan < Sunil but says nothing about Arjun. Statement I adds that Arjun = Pavan, so Arjun is also lighter than Sunil. Together they show Sunil is the heaviest; both statements are needed.

VLSI stands for Very Large Scale Integration – putting thousands to billions of transistors on a single chip, as in microprocessors.

Replacing the signs: 36 − 12 ÷ 4 + 6 ÷ 2 × 3. By BODMAS: 12 ÷ 4 = 3 and 6 ÷ 2 × 3 = 9, so the value is 36 − 3 + 9 = 42.

Sawai Madhopur station in Rajasthan, the gateway to Ranthambore and decorated with wildlife paintings, won the National Tourism Award 2014–15 for the best tourist-friendly railway station.

In order: 2, 3, 4, 7, 7, 7, 9, 9, 12, 13, 17. With 11 values the median is the 6th value, which is 7.

With tampered weights he receives 1220 g when buying 1 kg, and gives only 780 g when selling 1 kg. Every 780 g sold earns the price of 1000 g, so his money grows by a factor of 1220/780 = 1.5641 – a gain of about 56.41%.

Each group is three consecutive letters in reverse order, and the first letter moves 2 steps: Q, S, U, W, Y. The next group is YXW.

From Q ≤ C ≤ B = M we get M ≥ Q, so either M > Q or M = Q must hold – I and III form an either–or pair. D is linked only through M > D, so neither D ≤ Q nor C < D can be concluded.

The Indus Valley (Harappan) Civilization, about 3300–1300 BCE, used bronze – an alloy of copper and tin – for tools and figurines, so it is a Bronze Age civilization.

Volume of a cylinder = πr²h = 22/7 × 7 × 7 × 2 = 22 × 7 × 2 = 308 cubic cm.

Taking every student to like at least one fruit, both = 63 + 76 − 100 = 39. Apple only = 63 − 39 = 24.

n(A ∩ O) = n(A) + n(O) − n(A ∪ O) = 63 + 76 − 100 = 39 students like both.

Under Article 53 the executive power of the Union is vested in the President, the constitutional head. Real executive power is exercised by the Council of Ministers headed by the Prime Minister.

In increasing size: megabyte < gigabyte < terabyte < petabyte (each about 1024 times the previous). So 1 megabyte is the smallest.

The Mettupalayam–Ooty Nilgiri Passenger on the rack-and-pinion Nilgiri Mountain Railway averages only about 10 km/h, making it India's slowest train.

Tokyo was chosen in 2013 to host the 2020 Summer Olympics, beating Istanbul and Madrid. (The Games were postponed to 2021 because of COVID-19.)

Under Article 124(2), a judge of the Supreme Court, including the Chief Justice of India, holds office until the age of 65. High Court judges retire at 62.

Backspace deletes the character to the left of the cursor. The Delete key removes the character to its right.

Gain = 75 − 50 = Rs 25, and 25/50 × 100 = 50%.

The first Rs 200 grows for 2 years: 200 × 1.05² = 220.50. The second Rs 200 grows for 1 year: 200 × 1.05 = 210. Total = Rs 430.50.

Daman was the capital of the Union Territory of Daman and Diu. Since 2020, when it merged with Dadra and Nagar Haveli, Daman remains the capital of the combined UT.

3x(x + 4) − x(x − 2) = 3x² + 12x − x² + 2x = 2x² + 14x.

Surface area = 4πr² = 4 × 22/7 × 3.5 × 3.5 = 4 × 22/7 × 12.25 = 154 sq cm.

Quarterly compounding at 20% a year means 5% per quarter, and 6 months = 2 quarters. Amount = 14500 × 1.05² = 14500 × 1.1025 = Rs 15,986.25.

A. S. Kiran Kumar took over as ISRO Chairman on 14 January 2015, succeeding K. Radhakrishnan (and briefly Shailesh Nayak).

Swapping − and ÷ gives 5 + 3 × 8 ÷ 12 − 4 = 5 + 2 − 4 = 3, which is correct.

(2.25)^½ = √2.25 = 1.5, since 1.5 × 1.5 = 2.25.

Percentage = 9/25 × 100 = 36%.

With V = 1, A = 2, R = 3, S = 4, T = 5, E = 6, the order 4 5 2 3 1 6 gives S T A R V E = STARVE, a meaningful word.

Rani Lakshmibai of Jhansi was born Manikarnika Tambe in Varanasi; she was nicknamed Manu. She led the 1857 revolt in Jhansi.

Bala, Pranesh and Subhash stand together with Pranesh in the middle, and Jai stands immediately right of Ashok. The arrangement used in the official key, left to right, is Bala, Pranesh, Subhash, Ashok, Jai. (Ashok, Jai, Subhash, Pranesh, Bala also fits.) In both, Subhash is in the middle.

In the official arrangement – Bala, Pranesh, Subhash, Ashok, Jai (left to right, facing north) – Subhash stands immediately to the right of Pranesh.

In the official arrangement Bala, Pranesh, Subhash, Ashok, Jai, Subhash and Ashok stand next to each other. Subhash and Bala are separated by Pranesh, and Ashok and Pranesh by Subhash.

Sakshi Malik is a wrestler, who won bronze at the 2016 Rio Olympics, not a boxer. Jitu Rai (shooting), Dipa Karmakar (gymnastics) and P.V. Sindhu (badminton) are correctly matched.

High blood pressure is linked to cholesterol, which a patient with high BP is advised to limit. In the same way a diabetic is linked to carbohydrates, which a diabetic must control. Diabetic : Carbohydrates shows this condition–diet relation.

cot x = 5/12 gives a 5–12–13 triangle: sin x = 12/13, tan x = 1/cot x = 12/5 and sec x = 13/5. Sum = 12/13 + 12/5 + 13/5 = 12/13 + 5 = 77/13.

World Environment Day 2016, hosted by Angola, had the theme 'Go Wild for Life', against illegal trade in wildlife.

'Adversity makes a man wise' means people learn from hardship, so Conclusion II follows. Adversity is not the same as poverty, so I does not follow.

Heat and cold are opposites. Thin and thick are opposites too; large–big and tall–high are synonyms.

Biotech-KISAN (Krishi Innovation Science Application Network), launched in 2016 by the Department of Biotechnology under the Ministry of Science and Technology, links scientists with farmers.

The fourth proportional x satisfies 2 : 4 = 8 : x, so x = 4 × 8 / 2 = 16.

'The Life Tree' is a collection of poems by Dr. A.P.J. Abdul Kalam. 'Imagining India' and 'Rebooting India' are by Nandan Nilekani, and 'Untouchable' is by Mulk Raj Anand.

4992 ÷ 624 = 8 (624 × 8 = 4992). Then 8 − 10 = −2.

The Thar Desert spreads over Rajasthan and parts of Gujarat, Haryana and Punjab (and Pakistan). Himachal Pradesh is a Himalayan state with no part of the Thar.

Metals conduct electricity because they have free (delocalised) electrons that can move through the material when a voltage is applied.

CI = 9000 × (1.05² − 1) = 9000 × 0.1025 = Rs 922.50. (Rs 9922.50 is the amount, not the interest.)

CP = 2210 / 0.85 = Rs 2600. For a 15% profit, SP = 2600 × 1.15 = Rs 2990.

The Marine Gondwana Fossil Park at Manendragarh (Koriya district), Chhattisgarh, preserves marine fossils about 280 million years old from the Permian period.

In August 2016 Nita Ambani was elected to the International Olympic Committee, the first Indian woman to become an individual IOC member.

Light changes speed when it passes from one medium to another, so it bends at the boundary. This bending is refraction.

The series alternates: 11, 10, 101, 100, 1001, 1000, 10001 – each pair is 1…1 followed by 1…0, with one more zero each time. The blank is 101.

Bhagat Singh, Rajguru and Sukhdev shot British police officer J.P. Saunders in 1928 (mistaking him for James Scott) to avenge Lala Lajpat Rai's death. They were hanged on 23 March 1931.

Some editors are actors and all actors are writers, so those editors are writers – Conclusion I follows. II contradicts the statement 'some editors are actors', so it does not follow.

Seismologists identify earthquake-prone areas from plate movement, fault zones and the history of past earthquakes. The positions of planets play no part.

Let each part be d km. Time = d/10 + d/30 + d/2 = d(3 + 1 + 15)/30 = 19d/30 hours. This equals 38 minutes = 19/30 hour, so d = 1 and the total distance = 3 km.

Former IPS officer Dr. Kiran Bedi was sworn in as Lieutenant Governor of Puducherry on 29 May 2016.

Orang National Park in Assam, on the north bank of the Brahmaputra, was notified as India's 49th Tiger Reserve in February 2016.

Human blood is red, and in this code red is called yellow. So the answer is yellow.

The son of B's son is B's grandson. A is his brother, so A is also B's grandson.

Pranab Mukherjee was Finance Minister (1982–84 and 2009–12) before becoming President in 2012.

Food is made of organic compounds – carbohydrates, proteins and fats – that undergo chemical reactions in the body to release energy. Calling food an inorganic substance is incorrect.

Each letter of TEACHER moves 2 places forward: T→V, E→G, A→C, C→E, H→J, E→G, R→T. Applying +2 to STUDENT gives UVWFGPV.

Boys = 7/10 × 200 = 140, so girls = 200 − 140 = 60.

Product of two numbers = HCF × LCM, so HCF = 4941/81 = 61.

(0.3)² = 0.09, and 0.09 ÷ 100 = 0.0009.

2595 = 3 × 865, so 865 divides both numbers and their HCF is 865.

Vande Mataram was written by Bankim Chandra Chattopadhyay in the 1870s in highly Sanskritised Bengali (treated as Sanskrit in the official key) and later included in his novel Anandamath (1882).

The sum of the first 50 natural numbers = 50 × 51/2 = 1275, and 1275/50 = 25.5. (In general the mean is (n + 1)/2.)

SBI Exclusif, launched in 2016, is SBI's wealth management service for high-net-worth customers, with dedicated relationship managers.

Let x = 1.41313…. Then 1000x = 1413.1313… and 10x = 14.1313…. Subtracting, 990x = 1399, so x = 1399/990.

A cadaver is a dead human body, especially one used by medical students and researchers to study anatomy.

IRCTC's 2016 cleanliness survey of A1 and A category stations named Beas, Gandhidham, Vasco-da-Gama, Jamnagar, Kumbakonam, Surat, Nasik Road, Rajkot, Salem and Ankleshwar among the top ten. Pratapgarh was not in that list.

Replacing the letters: (7 × 3) − 6 + 5 × (20 ÷ 20) = 21 − 6 + 5 × 1 = 20.

Together the holes empty 1/15 + 1/10 = 2/30 + 3/30 = 1/6 of the container per minute, so they take 6 minutes.

Together the statements say the birthday is the last day of February, and 21 February is a Tuesday. The last day could be the 28th (Tuesday) or, in a leap year, the 29th (Wednesday). The year is not given, so the data is insufficient.

15% of 82 = 0.15 × 82 = 12.3.

Vans 8 minutes apart at 25 km/h are 25 × 8/60 = 10/3 km apart. The woman meets them every 4 minutes, so (25 + v) × 4/60 = 10/3, which gives 25 + v = 50 and v = 25 km/h.

Females: the grandmother (1), the mother (1), the four sons' wives (4) and one daughter for each son (4) – 10 in all.

From ROSE = 6821: R = 6, O = 8, S = 2, E = 1. From CHAIR = 73456: C = 7, H = 3, A = 4, I = 5. So SEARCH = S2 E1 A4 R6 C7 H3 = 214673.

Antrix Corporation Limited, set up in 1992, is the commercial and marketing arm of ISRO, selling space products and services such as satellite launches.

With cost price C, the selling prices are 1.08C and 1.12C. Their ratio is 108 : 112 = 27 : 28.

If Kushal does 1 unit a day, Amrit does 2, so together they do 3. The work = 3 × 6 = 18 units, and Kushal alone takes 18 days.

The work is 16 × 35 = 560 man-days. With 25 men it takes 560/25 = 22.4 days.

Havildar Hangpan Dada of the Assam Regiment, who killed four terrorists in Kupwara in May 2016 before being killed, was awarded the Ashok Chakra posthumously on the eve of Independence Day 2016.

Lonar Lake in Buldhana district, Maharashtra, is a saline crater lake formed by a meteorite impact on the Deccan basalt.

GST is an indirect tax on the supply of goods and services. It replaced many indirect taxes such as excise, VAT, service tax and luxury tax. Calling it a direct tax is not true.

On 12 August 2016 Shipping Minister Nitin Gadkari flagged off the cargo vessel MV Joy Basudev on the Ganga (National Waterway 1) at Varanasi, carrying Maruti cars to Kolkata.

The eyes give out tears; in the same way a volcano gives out lava.

Nothing links pearls with gems – the two statements share no term – so Conclusion I does not follow. 'Some gems are ornaments' converts directly to 'Some ornaments are gems' (a 'some' statement can always be reversed), so Conclusion II follows. Only II follows.

Graphite has free (delocalised) electrons between its carbon layers, so it conducts electricity and is used for electrodes. Mica, Bakelite and dry air are insulators.

The vowels are written in reverse order: U, O, I, E, A. The blank is E.

India's football goalkeeper Subrata Paul received the Arjuna Award in 2016.

151/105 × 100 ≈ 143.8%, i.e. about 144%.

From 1999–2000 to 2006–07 there are 7 yearly increases. The total increase = 151 − 105 = 46, so the average = 46/7 ≈ 6.57 per year.

The yearly increases are 5, 2, 3, 2, 13, 11 and 10 on bases 105, 110, 112, 115, 117, 130, 141. The largest percentage rise is 2003–04 to 2004–05: 13/117 × 100 = 11 1/9%.

The increases are: 2000–01 +5, 2001–02 +2, 2002–03 +3, 2003–04 +2, 2004–05 +13, 2005–06 +11, 2006–07 +10. The equal increases (Rs 2) are in 2001–2002 and 2003–2004.

As decimals: 4/15 ≈ 0.267, 3/10 = 0.3 and 1/3 ≈ 0.333. Ascending: 4/15, 3/10, 1/3.

Each exterior angle = 180° − 150° = 30°. Number of sides = 360/30 = 12.

SI = 575 × 5 × 4/100 = Rs 115. The amount to pay = 575 + 115 = Rs 690.

Total parts = 3 + 6 + 8 + 9 = 26, so one part = 130/26 = Rs 5. Shares: 15, 30, 40 and 45.

Linear magnification m = height of image / height of object. Its sign shows whether the image is erect or inverted.

El Niño is an abnormal warming of surface waters in the central and eastern tropical Pacific Ocean, affecting weather worldwide, including India's monsoon.

2 min 30 s = 150 s costs Rs 11, so 3 min 20 s = 200 s costs 11 × 200/150 = Rs 14.67 ≈ Rs 14.7.

India's first automated Bio-CNG plant, which turns organic waste into fuel, was inaugurated in Pune in August 2016 by Union Ministers Nitin Gadkari and Manohar Parrikar.

Each term is the sum of the two before it (Fibonacci): 1 + 2 = 3, 2 + 3 = 5, 3 + 5 = 8, 5 + 8 = 13.

In 2016 the Appointments Committee of the Cabinet extended the tenure of A.K. Mittal as Chairman, Railway Board, by two years from 1 August 2016.

A sparrow feeds on seeds; a silkworm feeds on mulberry leaves.

Gingee Fort in Villupuram district, Tamil Nadu, spread over three hills, was so hard to capture that the British called it the 'Troy of the East'.

The numbers are 8 × 6 = 48 and 9 × 6 = 54. LCM = 6 × 8 × 9 = 432.

Walking both ways takes 8 h 30 min, so one way on foot = 4 h 15 min. Running one way = 6 h 50 min − 4 h 15 min = 2 h 35 min, so running both ways = 5 h 10 min.

Python is a high-level, general-purpose programming language created by Guido van Rossum and first released in 1991.

Sonam Kapoor won the Best Actress award at the Indian Film Festival of Melbourne 2016 for her role in 'Neerja'.

An ocean is a huge mass of water; a glacier is a huge mass of compacted snow and ice.

The only daughter of Nandhini's father is Nandhini herself, so she is Raja's mother. Her husband is therefore Raja's father.

Harappan sites such as Harappa and Mohenjo-daro (Pakistan) and Lothal, Dholavira and Kalibangan (western India) show that the civilisation spread over present-day Pakistan and western India.

An applet is a small Java program that runs inside another application, typically a web browser.

IOA President N. Ramachandran received the Olympic Order, the IOC's highest award, for distinguished service to the Olympic movement.