Question
Pawan has some money left after spending 20%, 15% and
30% of monthly salary on rent, electricity and shopping respectively. The remaining money with Pawan increases by 1/5 when a friend gives him Rs. 4200. What is the monthly salary of Pawan ?Solution
After spending 20%, 15% and 30% of salary on rent, electricity and shopping. The amount left with Pawan is = 100 – (20 + 15 + 30) = 35% of salary as savings. Money increases by (1/5), Increase in remaining money = 1/5 × 35% (salary) = 7% => 7% (salary) = Rs. 4200 Monthly Salary = (100/7) × 4200 = Rs. 60000
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