Latest exam Aptitude Question SOLUTION: a,b,c,d and e are five natural numbers. Find the number of ordered sets (a,b,c,d,e) possible such that a+b+c+d+e=64. A. 64C5 B. 63C4 C. 65C4 D. 63C5

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(#M40020755) EXAM question permutation Keep an EYE

a,b,c,d and e are five natural numbers. Find the number of ordered sets (a,b,c,d,e) possible such that a+b+c+d+e=64.

A.

64C5

B.

63C4

C.

65C4

D.

63C5

Asked In exam MAN (11 years ago)

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yalamesh  (10 years ago)

Let assume that there are 64 identical balls which are to be arranged in 5 different compartments (Since a,b,c,d,e are distinguishable) If the balls are arranged in a row
i.e., o,o,o,o,o,o......(64 balls)

We have 63 gaps where we can place a wall in each gap, since we need 5 compartments we need to place only 4 walls.
We can do this in 63C4 ways

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