exam
Maths Puzzle
Numerical Ability
(10!+111)/143 what is the remainder??
Read Solution (Total 2)
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- 143 => 11*13
10! mod 11 + 111 mod 11 = R1
R[(p-1)!/p] = p-1 [Provided p is a prime no.]... So R[10!/11] = 10...
10 + 1 mos 11 => 11 mod 11 = 0
R1 = 0
10! mod 13 + 111 mod 13 = R2
6 + 7 mod 13
13 mod 13 = 0
R2 = 0
Rem = 11x+R1 = 13y+R2
Rem = 11x+0 = 13y+0
x = 13, y = 11
143 mod 143 = 0
Ans : 0 - 10 years agoHelpfull: Yes(9) No(0)
- 10!=3628800 10!+111=3628911/143=25377
- 10 years agoHelpfull: Yes(0) No(2)
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