Question
Rohit allocates his monthly salary in different proportions: 15% on traveling, 20% on entertainment, 22% on studies, and 26% on food. The remainder is donated. If the difference between what he spent on studies and the amount he donated is Rs. 628, what is Rohit's monthly salary?
Solution
We can say that let monthly salary of Rohit = Rs. 'r' Percentage of salary donated = 100 – (15 + 20 + 22 + 26) = 100 – 83 = 17% According to question, 0.22r – 0.17r = 628 0.05r = 628 r = 628/0.05 = 12560 So the monthly salary of Rohit = Rs.12,560
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