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Previous Year Paper

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CAT-2002-Previous Years Paper

Question
16 out of 50
 

The owner of a local jewellery store hired three watchmen to guard his diamonds, but a thief still got in and stole some diamonds. On the way out, the thief met each watchman, one at a time. To each he gaveof the diamonds he had then, besides 2 more. He escaped with one diamond. How many did he steal originally?



A 40
B 36

C 25
D None of these

Ans. B

Since thief escaped with 1 diamond,

Before 3rd watchman he had (1 + 2) × 2 = 6

Before 2nd watchman he had (6 + 2) × 2 = 16

Before 1st watchman he had (16 + 2) × 2 = 36

Alternative Method

Check with choices.

CAT-2002-Previous Years Paper Flashcard List

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