Two numbers are 25% and 40% more than a third number. Their ratio is: MCQ with Answer and Explanation
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Question #1
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40% of a number exceeds 25% of the same number by 30. What is 75% of the number?
Correct Answer: Option C
Explanation:
0.4x - 0.25x = 0.15x = 30 → x = 200. 75% of 200 = 150.
0.4x - 0.25x = 0.15x = 30 → x = 200. 75% of 200 = 150.
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Maths
Percentage
Question #2
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A salesman receives a commission of 12% on all sales and a bonus of 1% on sales exceeding Rs. 15,000. If his total earnings are Rs. 7,650, what are his total sales?
Correct Answer: Option B
Explanation:
Let total sales be x. Commission = 0.12x. Bonus = 0.01(x - 15000) for x > 15000. Total = 0.12x + 0.01x - 150 = 7650 implies 0.13x = 7800. Therefore, x = 60000.
Let total sales be x. Commission = 0.12x. Bonus = 0.01(x - 15000) for x > 15000. Total = 0.12x + 0.01x - 150 = 7650 implies 0.13x = 7800. Therefore, x = 60000.
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Maths
Percentage
Question #3
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A number is increased by 40% and then decreased by 40%. If the resulting number is 84, find the original number.
Correct Answer: Option B
Explanation:
1.4 × 0.6 = 0.84, 0.84x=84 → x=100.
1.4 × 0.6 = 0.84, 0.84x=84 → x=100.
This question belongs to:
Maths
Percentage
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