Hamid spends 1/4 of his monthly salary on rent and 2/5 of the remaining amount on food. He saves the remaining Rs. 9000. What is his monthly salary?
Correct answer B. Rs. 20000
Explanation
After rent, 3/4 is left. Food takes 2/5 of 3/4 = 3/10. Savings = 3/4 − 3/10 = 9/20 of salary, so salary = 9000 × 20/9 = Rs. 20000.
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