Latest TCS Aptitude Question SOLUTION: if 3 dice are rolled, what is the probability that the sum of the 3 numbers will be 10?

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(#M40011692) TCS question Keep an EYE

if 3 dice are rolled, what is the probability that the sum of the 3 numbers will be 10?

Asked In TCS (12 years ago)

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santosh pandey  (12 years ago)

event.......(1,3,6)(1,4,5)(1,5,4)(1,6,3)(2,2,6)(2,3,5)(2,4,4)(2,5,3)(2,6,2)(3,1,6)(3,2,5)(3,3,4)(3,4,3)(3,5,2)(3,6,1)(4,1,5)(4,2,4)(4,3,3)(4,4,2)(4,5,1)(5,1,4)(5,2,3)(5,3,2)(5,4,1)(6,1,3)(6,2,2)(6,3,1)
Total 27 possible events
So probability is ..........(27/216)

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kck  (12 years ago)

answer: 1/6.
Explanation:
combinations will be like.
1 3 6 in 6 ways.
1 4 5 in 6 ways.
2 4 4 in 3 ways
4 3 3 in 3 ways
2 3 5 in 6 ways.
2 4 6 in 6 ways.
2 2 6 in 3 ways
3 3 4 in 3 ways
total 36 ways .
hence probability=36/216=1/6

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kck  (12 years ago)

Sry i hv made few wrong combinations ..

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