Latest Genpact Aptitude Question SOLUTION: A sequence {An} is defined A(1)=0&A(n+1)=A(n)+2(n)WHAT IS VALUE OF A(100) [*TCS-2012*] (A)9902 (B)9900 (C)10100 (D)9904

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(#M40154898) GENPACT question Keep an EYE

A sequence {An} is defined A(1)=0&A(n+1)=A(n)+2(n)WHAT IS VALUE OF A(100)
[*TCS-2012*]
(A)9902 (B)9900 (C)10100 (D)9904

Asked In Genpact S B HARISH (8 years ago)

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neha saxena  (8 years ago)

a(1)=0 ----------------------------1.
a(n+1)=a(n)+2(n)-----------2.
put n=1 in 2.
we get a(2)=2
den put n=2 in 2.
we get a(3)=6
similarly put n=3
we get a(4)=12
u can see for n+1=1+1=2 2×1=2
n+1=2+1=3 3×2=6
n+1=3+1=4 4×3=12
similarly n+1=99+1=100 100×99=9900

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chandana  (8 years ago)

I don't know the answer can u provide solution

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