Book
Maths Puzzle
Numerical Ability
let s denote the sum of the squares of the first m natural numbers. for how many values of m<100, is s a multiple of 4?
a)50 b)25 c)36 d)24
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Book Other Question
find the remainder when 30^72^87 is divided by 11?
a)5 b)9 c)6 d)3
how many integer values of x and y satisfy the expression 4x+7y=3 where |x|<1000 and |y|<1000?
a)284 b)285 c)286 d)none of these