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QA – Placement Quizzes | Percentages | Question 4

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Jack consumes 75% of his salary. Later his salary is increased by 20% and he increases his expenditures by 10%. Find the percentage increase in his savings. (A) 51% (B) 60% (C) 50% (D) 55%

Answer: (C)

Explanation: Let Jack’s original salary be Rs 100. Then, his expenditure = Rs 75, his savings = Rs 25. Now, his new salary = Rs 120. So, new expenditure = (110/100) × 75 = Rs 165/2, new savings = 120 – 165/2 = Rs 75/2. Increase in savings = 75/2 – 25 = Rs 25/2. Therefore, percentage increase in savings = (25/2)/25 × 100% = 50%.

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Last Updated : 28 Jun, 2021
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