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Maths Puzzle
Numerical Ability
Arithmetic
What is the sum of the squares of the first 20 natural numbers(1 to 20)?
Read Solution (Total 1)
n(n+1)(2n+1)/6
20*21*41/6
2870
5 years ago
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Interview Other Question
A person had to multiply two numbers. Instead of multiplying by 35, he multiplied by 53 and the product went up by 540. What was the raised product?
if '56' stands '26f' and '82' stands '39b' then '66' stands for??
1)28 f
2)31f
3)34e
4)31e