Question
Express $100$ as the sum of $10$ odd numbers.

Answer

We know that $n^2$ is equal to the sum of first n odd numbers.
$100 = 10^2$
$=$ Sum of $10$ odd numbers $= (1 + 3 + 5 + 7 + 9 + 11 + 13 + 15 + 17 + 19)$

Need a full question paper?

Generate a complete, print-ready paper with questions like this in minutes — across 16+ boards, with answer keys.

Start Generating Free