Accenture
Company
Numerical Ability
Permutation and Combination
(1-1/6) (1-1/7).... (1- (1/ (n+4))) (1-(1/ (n+5))) = ? leaving the first numerater and last denominater, all the numerater and denominater will cancelled out one another.
A 5/(n+5) B 1-1/(n+6) C 1/(n+5) D 1/(n+6)
Read Solution (Total 2)
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- A. 5/(n+5)
(1-1/6) (1-1/7).... (1- (1/ (n+4))) (1-(1/ (n+5)))
= 5/6 * 6/7 * .... * (n+3)/(n+4) * (n+4)/(n+5)
= 5/(n+5) - 9 years agoHelpfull: Yes(30) No(1)
- 1) 5/n+5
1st numerator is5, last denomenator=n+5 - 9 years agoHelpfull: Yes(5) No(0)
Accenture Other Question
372, 823, 644, 582, 46?, 8?7. Then which digits will come at the place of (?)
A 6,7
B 5,9
C 6,2
D 5,3
When Raja was born, his father was 32 years older than his brother and his mother was 25 years older than his sister. If Raja’s brother is 6 years older than Raja and his mother is 3 years younger than his father, how old was Raja’s sister when Raja was born?