Exam: 10% ineligible, 60% of eligible males. 4320 males, total candidates: MCQ with Answer and Explanation
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Question #1
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Price of TV increased 30% then decreased 30%. Net change:
Correct Answer: Option C
Explanation:
1.3 × 0.7 = 0.91, 9% decrease.
1.3 × 0.7 = 0.91, 9% decrease.
This question belongs to:
Maths
Percentage
Question #2
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In a 40-litre mixture of milk and water, the ratio is 3:2. How many litres of water must be added to change the ratio to 1:2?
Correct Answer: Option A
Explanation:
Milk = 24, water = 16. For milk:water = 1:2, water = 48, add 32 L.
Milk = 24, water = 16. For milk:water = 1:2, water = 48, add 32 L.
This question belongs to:
Maths
Percentage
Question #3
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25% reduction in sugar price lets a person buy 8 kg more for Rs. 200. Reduced price per kg:
Correct Answer: Option D
Explanation:
Original price x, consumption y, xy=200. New 0.75x(y+8)=200 → 150 + 6x = 200 → 6x=50 → x=25/3≈8.33, reduced price 0.75*x = 6.25. So Rs. 6.25.
Original price x, consumption y, xy=200. New 0.75x(y+8)=200 → 150 + 6x = 200 → 6x=50 → x=25/3≈8.33, reduced price 0.75*x = 6.25. So Rs. 6.25.
This question belongs to:
Maths
Percentage
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