Question

Ujwal was given hus pocket money on jan 1st 2008. He puts rupees 1 on day 1,rupees 2 on day 2, rupees 3 on day 3 and continued doing so till the end of the month from thus money into his piggy bank. He also spent rupees 204 of his pocket money, and fonud that at the end of month he still had rupees 100 with him. How much was his pocket money for the month?

Answer 1

the full explanation is given above