Question
A person gives 20% of his salary to his wife and 25% of
the remaining to his children. Now he is left with Rs. 27000. What is his total salary?Solution
Let the total salary be x x × (100 – 20)% × (100 – 25)% = 27,000 x ×  80/100 ×  75/100 = 27,000 x = (27000 ×100 ×100)/(80 ×  75) = Rs.45,000
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