• Placement Papers
• /
• MBA

MBA Question Papers:

(#M40014575) MBA question permutations and combinations, probability Keep an EYE

In how many ways can a selection be made of letters out of 5As, 4Bs, 3Cs, 2Ds and 1Es ?

1) 70
2) 71
3) 3003
4) none of these

Asked In MBA (11 years ago)

Unsolved Read Solution (1)

Is this Puzzle helpful?   (0)   (0) Submit Your Solution

Read Solution (1) :

SAUMIN PRATAP SAIKIA  (10 years ago)

Number of ways of selecting 5 different letters:
=5C5=1 way

Number of ways to select 2 similar and 3 different letter:
=4C1×4C3=16

Number of ways of selecting 2 similar + 2 more similar letter and 1 different letter:
=4C2×3C1=18

Number of ways to select 3 similar and 2 different letter:
=3C1×4C2=18

Number of ways to select 3 similar and another 2 other similar:
=3C1×3C1=9

Number of ways to select 4 similar and 1 different letter:
=2C1×4C1=8

ways of selecting 5 similar letters:
=1

total ways: =1+16+18+18+9+8+1=71

Is this solution Helpfull? Yes | No   

Please Login to Read Solution.