ClassesClass 9MathsNCERTSequences and ProgressionsEnd Of Chapter ExercisesQ 6
QUESTION 6 Easy

Find all possible ways of expressing 100 as the sum of consecutive natural numbers.

SOLUTION

Let there be \(n\) consecutive numbers starting from \(a\).
\(100 = a + (a+1) + (a+2) + ... + (a + n − 1)\)
This is an AP.