A man spends 50% of his income. His income rises by 50% and expenditure by 20%. Percentage increase in savings is: MCQ with Answer and Explanation
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Question #1
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2% of 2% of 1000 is:
Correct Answer: Option B
Explanation:
2% of 1000 = 20, 2% of 20 = 0.4.
2% of 1000 = 20, 2% of 20 = 0.4.
This question belongs to:
Maths
Percentage
Question #2
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Radius of a circle increased by 50%. Percentage increase in area:
Correct Answer: Option B
Explanation:
Area proportional to radius². New radius 1.5r, area 2.25 times, increase = 125%.
Area proportional to radius². New radius 1.5r, area 2.25 times, increase = 125%.
This question belongs to:
Maths
Percentage
Question #3
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The salary of a person was first increased by 20% and then decreased by 20%. If his original salary was Rs. 5000, what is his final salary?
Correct Answer: Option A
Explanation:
5000 × 1.2 × 0.8 = 5000 × 0.96 = 4800.
5000 × 1.2 × 0.8 = 5000 × 0.96 = 4800.
This question belongs to:
Maths
Percentage
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