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Railways PYQCBT 1 2016

RRB NTPC · Question 38

A lady wants to buy the following items in the given price range- 1. Tomato between Rs. 40 and Rs. 45 per kg. 2. Grapes in the price range of Rs. 80 and Rs. 90 per kg. 3. Milk packets at Rs. 23 per liter. In which shop from the following will she definitely get all her items/ A. Shop S sells tomato at Rs. 22.5 per half kg, Grapes at Rs. 82 per kg and milk at Rs. 24 per liter. B. Shop H sells grapes at Rs. 21 per quarter kg, milk at 12.5 per half litre and tomato at Rs. 22 per half kg. C. Shop O sells milk at Rs. 11.5 per half litre, tomato at 21 per half kg and grapes at Rs. 43 per half kg. D. Shop P sells tomato at Rs. 23.5 per half kg, grapes at Rs. 85 per kg and milk at Rs. 23 per litre.

  1. A

  2. D

  3. B

  4. C

Show answer & explanation

Answer: (D) C

Explanation

Convert everything to per-kg and per-litre prices. Shop O: milk Rs 11.5 per half litre = Rs 23/litre, tomato Rs 21 per half kg = Rs 42/kg (between 40 and 45), grapes Rs 43 per half kg = Rs 86/kg (between 80 and 90); all fit. Shop S charges Rs 24 for milk, shop H Rs 25, and shop P's tomatoes are Rs 47/kg, so only shop O works.