• Placement Papers
• /
• MBA

MBA Question Papers:

(#M40017257) MBA question permutations and combinations, probability Keep an EYE

You have enough coins of 1, 5, 10, 25 paise. How many combinations are possible to make 50 paise?

1) 52
2) 49
3) 44
4) 45

Asked In MBA (11 years ago)

Unsolved Read Solution (1)

Is this Puzzle helpful?   (1)   (2) Submit Your Solution

Read Solution (1) :

Mrinmoy Sengupta  (7 years ago)

In that case it is easier to observe that number of 1 paisa coins must be multiple of 5. So let number of 1 paisa coins be 5a, 5paise be b, 10 paise be c and 25 paise be d.

Thus we have, 5a + 5b + 10c + 25d = 50
i.e. a + b + 2c + 5d = 10

It's easier to calculate now with smaller values. Just check by putting d = 0, 1 and 2 and the total cases come out to be: (1 + 3 + 5 + 7 + 9 + 11) + (2 + 4 + 6) + (1) = 49

Is this solution Helpfull? Yes | No   

Please Login to Read Solution.