If the price of sugar rises by 25%, by what percent must consumption be reduced so that expenditure remains the same? MCQ with Answer and Explanation
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Question #1
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A man gave 25% to wife, 20% of remainder to son, 25% of remainder to daughter, rest Rs. 9000 to charity. Total amount:
Correct Answer: Option C
Explanation:
Wife 25%, left 75%. Son 20% of 75%=15%, left 60%. Daughter 25% of 60%=15%, left 45% = 9000 → total = 20000.
Wife 25%, left 75%. Son 20% of 75%=15%, left 60%. Daughter 25% of 60%=15%, left 45% = 9000 → total = 20000.
This question belongs to:
Maths
Percentage
Question #2
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In a bag, 60% are red balls, 30% are blue balls, and the rest are green balls. If 5% of red, 10% of blue, and 20% of green balls are defective, what percent of the total balls are defective?
Correct Answer: Option C
Explanation:
Red=60, Blue=30, Green=10. Defective: Red 0.05×60=3, Blue 0.1×30=3, Green 0.2×10=2. Total defective=8%. So answer 8%.
Red=60, Blue=30, Green=10. Defective: Red 0.05×60=3, Blue 0.1×30=3, Green 0.2×10=2. Total defective=8%. So answer 8%.
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Maths
Percentage
Question #3
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Due to a 20% reduction in the price of sugar, a man is able to buy 6 kg more for Rs. 120. What is the reduced price per kg?
Correct Answer: Option A
Explanation:
Original x, xy=120. 0.8x(y+6)=120 → 96 + 4.8x = 120 → 4.8x = 24 → x=5, reduced = 0.8×5 = 4.
Original x, xy=120. 0.8x(y+6)=120 → 96 + 4.8x = 120 → 4.8x = 24 → x=5, reduced = 0.8×5 = 4.
This question belongs to:
Maths
Percentage
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