Robin decided to donate 16% of his monthly salary to an NGO. On the day of donation, he changed his mind and donated Rs. 7,705 which was 67… — Answer & Discussion

Robin decided to donate 16% of his monthly salary to an NGO. On the day of donation, he changed his mind and donated Rs. 7,705 which was 67% of what he had decided earlier. How much is Robin’s monthly salary?

ARs. 80,756
BRs. 71,875
CRs. 56,700
DRs. 45,696

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Discussion 1

CCommunity20 Jun 2019

According to the question,

Amount of money Robin had decided to donate earlier = (100/67) × 7,705 = Rs. 11,500

Given, amount of money he decided to donate is 16% of his monthly income

∴ His monthly income = (100/16) × 11,500 = Rs. 71,875

Short Trick:

Let his monthly salary be Rs. x

⇒ x × 16/100 × 67/100 = 7705

⇒ x = Rs. 71875