RRB NTPC CBT 1 2016: questions with answers

The reward is only for records broken fairly. XYZ was found under the influence of a banned drug, so he will not get the reward (II follows). Nothing shows the accusation was false (I does not follow).

Mutation theory (Hugo de Vries) says new species arise from sudden, large, heritable changes in traits, unlike Darwin's gradual natural selection.

The Colosseum is in Italy; the rock-cut city of Petra is in Jordan. Both are among the New Seven Wonders of the World.

Variance = (standard deviation)² = 9² = 81.

Positivism (Auguste Comte) accepts only knowledge that can be verified scientifically or proved logically or mathematically, and rejects metaphysics and theism.

147 runs out of 210 is 70% of the runs, not 70% of the team (I fails), and nothing is said about who opened the batting (II fails). Neither follows.

CP of 12 books = SP of 8 books. Take CP of a book = 1: SP of 8 books = 12, so SP of 1 book = 1.5. Gain = 50%.

The Statue of Liberty in New York, designed by French sculptor Frédéric Auguste Bartholdi and dedicated in 1886, is an icon of freedom.

In 2015 TAG Heuer partnered with Google and Intel to launch the TAG Heuer Connected, a luxury smartwatch running Android Wear.

Atomic size increases down a group. Among the halogens fluorine, chlorine, bromine and iodine, iodine has the largest atom.

Let the coins be 2x, 4x and 5x. Value = 2x + 8x + 25x = 35x = 455, so x = 13 and the number of Rs 2 coins = 4x = 52.

A function used inside another function, e.g. =ROUND(SUM(A1:A5),2), is called a nested function.

India's first passenger train ran from Bori Bunder (Bombay) to Thane on 16 April 1853, in present-day Maharashtra.

The second train's speed = 300/3 = 100 km/h. With speeds in the ratio 3 : 4, the first train's speed = 3/4 × 100 = 75 km/h.

Interchanging ÷ and −: 5 × 45 ÷ 15 + 31 − 41 = 15 + 31 − 41 = 5.

Andrology is the branch of medicine dealing with male health, especially reproductive and urological problems specific to men.

11/19 ≈ 0.579, 2/3 ≈ 0.667, 13/17 ≈ 0.765 and 22/7 ≈ 3.14, so the ascending order is 11/19, 2/3, 13/17, 22/7.

The product contains tan 0° = 0, so the whole product is 0.

sin θ = cos θ gives θ = 45°, so sin θ = cos θ = 1/√2. sin⁶θ + cos⁶θ = 1/8 + 1/8 = 1/4.

The Harvard Business Review's 2015 list of best-performing CEOs was topped by Lars Rebien Sørensen of Novo Nordisk.

In a series circuit resistances add up. More lamps mean more total resistance, so at constant voltage the current (I = V/R) decreases.

The Swaraj Party was founded in January 1923 by Motilal Nehru and Chittaranjan Das to contest legislative council elections.

Let the sides be x, x + 49 and x + 50. Then x² + (x + 49)² = (x + 50)², which gives x² − 2x − 99 = 0, so x = 11 cm (sides 11, 60, 61).

Sound is a mechanical wave and needs a medium (solid, liquid or gas). It cannot travel through a vacuum.

Working the clues out, the clockwise order is Varun, Tuhin, Rahul, Ujala, Qutub, Stalin, Prema, Waheeda (each person's immediate right is the one before them). Stalin is therefore on the immediate left of Qutub.

In the order Varun, Tuhin, Rahul, Ujala, Qutub, Stalin, Prema, Waheeda, the person second to the right of Ujala is Tuhin, so (Ujala, Tuhin) is the pair.

Varun sits between Waheeda and Tuhin: he is on Tuhin's immediate right and on Waheeda's immediate left, so statement C is true.

Powers of a number ending in 4 end in 6 for even powers and 4 for odd powers. 1234¹⁰² ends in 6 and 1234¹⁰³ ends in 4, so the sum ends in 0.

HOUSE: H(8)+2 = 10, O(15)−2 = 13, U(21)+2 = 23, S(19)−2 = 17, E(5)+2 = 7, alternately +2 and −2. REHEARSE: 20-3-10-3-3-16-21-3.

Art = 15, so Drama and Art only = 15 − 6 − 5 − 2 = 2. Total 30 = 2 + 3 + 6 + 2 + 2 + 5 + (Chess and Drama only), giving 10 for Chess and Drama only. Chess = 2 + 2 + 5 + 10 = 19.

From 30 = 20 + x, the number in Chess and Drama but not Art is x = 10.

Exactly one group: only Chess 2 + only Drama 3 + only Art 6 = 11.

On 27 January 2014 the Union Cabinet granted Jains national minority status; it was notified soon after, making them the sixth notified minority.

The Thousand Pillar Temple (Rudreswara Swamy Temple) at Hanamkonda, Telangana, was built in 1163 by the Kakatiya king Rudra Deva.

'The impact of climate change was (Q) not as significant as (S) the impact business management choices (P) would have on profitability (R)' = QSPR.

Sir Thomas Clifford Allbutt invented the short clinical thermometer (about 1867), which took a reading in five minutes instead of twenty.

The Godavari rises at Trimbakeshwar in Maharashtra and flows through Telangana, Chhattisgarh (tributaries) and Andhra Pradesh to the Bay of Bengal. It does not flow through Gujarat.

Lithium (Li) has atomic number 3.

Chloroplasts, which carry out photosynthesis, are found in plant cells but not in animal cells. ER, mitochondria and ribosomes are in both.

Let the numbers be 3k and 4k. 12k² = 1728 gives k = 12, so the greater number is 48.

Letters take reverse alphabet values (A = 26, …, Z = 1): TEA = 7 + 22 + 26 = 55. SPATTER = 8 + 11 + 26 + 7 + 7 + 22 + 9 = 90.

Antonio Meucci, an Italian inventor, developed a voice-communication device ('telettrofono') before Bell; in 2002 the US House of Representatives recognised his work on the telephone.

Sweden's Stockholms Banco issued Europe's first banknotes in 1661, and Sweden was in the news as heading to become the first cashless society.

The Kyoto Protocol was adopted in 1997 and entered into force on 16 February 2005.

Let one man do m and one woman w of the work per day. 4m + 3w = 1/10 and 2m + 9w = 1/8. Doubling the second, 4m + 18w = 1/4, so 15w = 3/20 and w = 1/100. Then m = (1/10 − 3/100)/4 = 7/400. 12 men do 12 × 7/400 = 21/100 = 21% a day.

Sorted: 17, 18, 24, 25, 27, 29, 42, 42, 48, 63, 65, 69, 79, 87, 98. With 15 values, the median is the 8th, 42.

A + B = 1/20, B + C = 1/50 and A + C = 1/40 of the task per day. Together A + B + C = (1/20 + 1/50 + 1/40)/2 = 19/400. So A = 19/400 − 1/50 = 11/400 and B = 19/400 − 1/40 = 9/400. Times are in the inverse ratio: A : B = 9 : 11.

All toys are books and all books are trains, so all toys are trains, which means some trains are toys.

75% correct means 25% wrong: 25% of 60 = 15 questions.

Some animals are rivers, so some rivers are animals (1). All rivers are clouds, so some clouds are rivers (2). 'All clouds are rivers' and 'all animals are clouds' do not follow. Conclusions 1 and 2 follow.

Bharatanatyam is the classical dance of Tamil Nadu; Kuchipudi is the classical dance of Andhra Pradesh.

Sri Gupta (late 3rd century CE) is regarded as the founder of the Gupta dynasty; Chandragupta I later made it an empire.

The experience condition is only waived for outstanding candidates, so normally students will have HR experience (I) and some outstanding ones may not (II). The official key treats both as following.

Rakesh Sharma flew to the Salyut 7 space station aboard the Soviet spacecraft Soyuz T-11 in April 1984.

Laika, a Moscow street dog, was the first animal to orbit the Earth, aboard Sputnik 2 on 3 November 1957.

Malaysia's flag (Jalur Gemilang) has 14 alternating red and white stripes, representing its 13 states and the federal government.

2 + 4 + 3 = 9 parts = 180°, so 1 part = 20°: the angles are 40°, 80° and 60°. Smallest + largest = 40° + 80° = 120°.

Interchanging × and +: 72 ÷ 9 × 5 + 3 − 2 = 40 + 3 − 2 = 41.

KINGS → RFMHJ: reverse the word (SGNIK) and move each letter one step back (S→R, G→F, N→M, I→H, K→J). QUEEN reversed is NEEUQ → MDDTP.

Aparna's brother's wife's son is Aparna's nephew; his only paternal uncle is Aparna's other brother, and that man's father is Aparna's father.

Hiten's son's maternal grandfather is Hiten's father-in-law; his only son is Hiten's brother-in-law, whose only sister is Hiten's wife. Her mother-in-law is Hiten's mother.

Replacing the signs: 225 − 5 × 96 ÷ 3 + 31 = 225 − 160 + 31 = 96.

Tilak started the Marathi newspaper Kesari (and the English Mahratta) in 1881 to awaken nationalist feeling.

4237.43 + 453.32 + 24.12 = 4714.87; 4714.87 − 387.23 = 4327.64.

630 = 2 × 315 and 945 = 3 × 315, so 315 divides all three and the HCF is 315.

Same principal and rate, so simple interest is proportional to time: 6 years : 4 years = 3 : 2 (Sita : Rita).

18 = 2 × 3², 33 = 3 × 11 and 37 is prime. LCM = 2 × 3² × 11 × 37 = 7326.

IPCC is the Intergovernmental Panel on Climate Change, set up in 1988 by the WMO and UNEP; it shared the 2007 Nobel Peace Prize.

Archery made its Olympic debut at the 1900 Paris Games; it returned permanently from 1972.

28561/10000 = 2.8561 = 1.3⁴, so the money was deposited for 4 years.

Selected as % of appeared: 1997 1.18%, 1998 1.00%, 1999 1.09%, 2000 0.95%, 2001 0.78%. The lowest is in 2001.

Average selected = (94 + 48 + 82 + 90 + 70)/5 = 384/5 = 76.8 ≈ 77.

Selected/qualified: 1997 0.111, 1998 0.096, 1999 0.128, 2000 0.106, 2001 0.088. The highest ratio is in 1999.

Koneru Humpy became India's youngest woman Grandmaster in 2002 at 15 years 1 month, then the youngest woman GM in the world.

Divya's husband's sister's only sibling is Divya's husband. His son's paternal grandmother is the husband's mother, Divya's mother-in-law.

Titan (Saturn), Triton (Neptune) and Titania (Uranus) are moons. Taurus is a constellation, so it is different.

The angles are in the ratio 4 : 5, so their squares are in the ratio 16 : 25 (the angles are 80° and 100°).

White or blue = 3 + 5 = 8 of 12 cushions, a probability of 8/12 = 2/3.

The IRS (Indian Remote Sensing) satellites, from IRS-1A in 1988, provide remote-sensing data for agriculture, forestry, water and disaster management.

n = 5k + 4, so 2n = 10k + 8 = 5(2k + 1) + 3. The remainder is 3.

Clouds are made of tiny water droplets or ice crystals spread through a large volume of air, so their overall density is very low, close to that of the surrounding air, and rising air currents keep them up.

Replacing the signs: 208 ÷ 4 × 3 − 23 + 57 = 52 × 3 − 23 + 57 = 156 − 23 + 57 = 190.

Integrated circuits are built on a small chip (wafer) of the semiconductor silicon.

InterGlobe Aviation Ltd, which listed in November 2015, owns and operates IndiGo, India's largest airline.

TEACHER → UDBBIDS: letters alternately +1 and −1 (T→U, E→D, A→B, C→B, H→I, E→D, R→S). STUDENT → T S V C F M U = TSVCFMU.

A refrigerator cools by evaporation: the refrigerant evaporates in the coils inside, absorbing heat (latent heat), and is compressed and condensed outside.

Kathakali, the story-play dance with elaborate make-up and costumes, is the classical dance of Kerala.

Gain = 2860 − 2750 = Rs 110. Gain % = 110/2750 × 100 = 4%.

G. V. Mavalankar was the first Speaker of the Lok Sabha (1952–56), and M. A. Ayyangar the first Deputy Speaker.

87654 × 99999 = 8765400000 − 87654 = 8765312346.

For equal distances the average speed = 2 × 4 × 3/(4 + 3) = 24/7 ≈ 3.43 km/h.

India won its first Olympic hockey gold at the 1928 Amsterdam Games, with Dhyan Chand the top scorer.

Cholera, caused by Vibrio cholerae in contaminated water, is an acute intestinal infection with severe watery diarrhoea.

Sir Jagadish Chandra Bose invented the crescograph to measure the growth of plants.

Sum = 54 + 23 + 66 + 44 + 79 + 21 + 54 + 67 + 29 + 59 = 496. Mean = 496/10 = 49.6.

Alassane Ouattara has been President of Côte d'Ivoire (Ivory Coast) since 2010.

(4, 1): 12 − 4 = 8 ✓; (8, 4): 24 − 16 = 8 ✓; (0, −2): 0 + 8 = 8 ✓; (1, 4): 3 − 16 = −13 ✗. So (1, 4) is not a solution.

LCD = 5 × 21 × 52 = 5460. 7/5 = 7644/5460, 31/21 = 8060/5460 and 23/52 = 2415/5460. Sum = 18119/5460.

At Rs 9 he loses 10%, so CP = 9/0.9 = Rs 10. For 5% profit he must sell at Rs 10.50.

Fish are kept in an aquarium; birds are kept in an aviary. (An apiary is for bees, a byre for cattle and a drey is a squirrel's nest.)