Rohit spends 40% of his salary on food, 20% on house rent , 10% on entertainment and 10% on conveyance. If his saving at the end of a month are Rs.1500, then his monthly salary is :
Saving = [100 - (40 + 20 + 10 + 10)]% = 20%. Let the monthly salary be Rs. `x`
Then, 20% of `x` = 1500 ` hArr 20/100 x = 1500 hArr x `= 1500 x 5 = 7500
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