Question

Express 144 as a sum of 12 odd numbers.

Answer 1

Here, n = 12

Now, 1 + 3 + 5 + … + 23 = 12² = 144

Thus, the sum of the first 12 odd numbers 1, 3, 5, 7, 9, 11, 13, 15, 17, 19, 21 and 23 is 144.