A bag contains a total of 93 coins in the form of one rupee and 50 paise coins. If the total value of coins in the bag is Rs.56, find the number of 50 paise coins in the bag?
Correct answer: D. 74
- A. 60
- B. 56
- C. 64
- D. 74
- E. None of these
Explanation
If there are x 50-paisa coins, there are 93 - x one-rupee coins. Their value is Rs.0.50x + Rs.1(93 - x) = Rs.56, so 93 - 0.50x = 56 and x = 74 coins. A likely mistake is option a, 60 coins, from treating each 50-paisa coin as worth Re.1.
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