A person spends 25% of his income on food, 20% on rent, 15% on education and saves the rest. If his savings are Rs. 7200, his income is: MCQ with Answer and Explanation
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Question #1
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A town's population increases by 10% in the first year and 20% in the second year. What is the net percentage increase?
Correct Answer: Option D
Explanation:
Net change = 10 + 20 + ((10 * 20) / 100) = 30 + 2 = 32%.
Net change = 10 + 20 + ((10 * 20) / 100) = 30 + 2 = 32%.
This question belongs to:
Maths
Percentage
Question #2
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A number is increased by 10%, then increased by 20%, then decreased by 10%. Net percentage change:
Correct Answer: Option C
Explanation:
1.1 × 1.2 × 0.9 = 1.188, increase 18.8%.
1.1 × 1.2 × 0.9 = 1.188, increase 18.8%.
This question belongs to:
Maths
Percentage
Question #3
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A number divided by 4, quotient increased by 25% then decreased by 20% gives 150. Number:
Correct Answer: Option A
Explanation:
(N/4)×1.25×0.8 = (N/4)×1 = 150 → N/4=150 → N=600.
(N/4)×1.25×0.8 = (N/4)×1 = 150 → N/4=150 → N=600.
This question belongs to:
Maths
Percentage
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