Using only 2, 5, 10, 25 and 50 paisa coins, what will be the minimum number of coins required to pay exactly 78 paise, 69 paise and Re. 1.01 to three different persons?
  • a)
    19
  • b)
    20
  • c)
    17
  • d)
    18
Correct answer is option 'A'. Can you explain this answer?

CAT Question

Shanti Devi
Nov 23, 2020
For 78 paise: 50 + 10 + 10 + 2 + 2 + 2 + 2 = 7 coins
For 69 paise: 50 + 10 + 5 + 2 + 2 = 5 coins
For 101 paise: 50 + 25 + 10 + 10 + 2 + 2 + 2 = 7 coins
So, total number of coins = 19

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