TCS Company Numerical Ability Permutation and Combination

what is the sum of
1!+2!+3!+4!+....+50!

Read Solution (Total 8)

3.1035*10^64
12 years agoHelpfull: Yes(7) No(2)

51!-1 ans.
12 years agoHelpfull: Yes(5) No(2)
@noor alam...51!-1 kyun hoga explain kr do plzz
12 years agoHelpfull: Yes(3) No(1)
@nilesh..yar cud u plzz explain the solution
12 years agoHelpfull: Yes(2) No(0)
1^50+2^49+3^48+4^47................
=31035053229546199656252032972759319953…
12 years agoHelpfull: Yes(0) No(4)
use of calci@prachi
12 years agoHelpfull: Yes(0) No(0)
can any1 tell the soln !
12 years agoHelpfull: Yes(0) No(0)
ans=n(n+1)/2
=n!(n+1)!/2!
=50!(51!)
11 years agoHelpfull: Yes(0) No(0)

TCS Other Question

In a sequence of integers A(n)=A(n-1)-A(n-2) , where A(n) is the nth term in the sequence, n is an integer and n>=3, A(1)=1,A(2)=1. Calculate S(1000), where S(1000) is the sum of first 1000 terms
(1)2
(2)3
(3)4
(4)0 The sequence is defined by A(1)=2 and A(n+1)=A(n)+2n What is the value of A(100)
(1)9902
(2)9900
(3)10100
(4)9904