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Polynomials related Questions by Balaji

what is the sum of 1^2+3^2+5^2+....31^2 ?

a) 9455

b) 5456

c) 3468

d) 4892

answer choice b


1^2+2^2+3^2......n^2 = (n(n+1)(2n+1))/6 

expression = ((31*32*63)/6)-((60*16*31)/6)




Given that the month of may of a non leap year has 5 sundays what is the probability that the year started on a wednesday

a) 1/7

b) 1/3

c) 0

d) 1

answer choice  c


probability of getting jan 1st being wednesday = 0



N has p factors

2N has 2p factors

3N has 4P/3 factors 

which of the follow could be N?

a) 36

b) 38

c) 40

d) 45

answer choice d


no of factor of N = (a+1)(b+1)(c+1)

no of factor of 3N = (a+2)(b+1)(c+1)




N is odd  no that multiple of 9 





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