Two numbers are in the ratio 12:8 and their sum is 523. Find the numbers. MCQ with Answer and Explanation
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Question #1
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Milk and water are in ratio 4:3 in a 517 L mixture. Quantity of milk?
Correct Answer: Option D
Explanation:
Total parts = 7. Milk = [4 / (4+3)] × 517 = 295 L.
Total parts = 7. Milk = [4 / (4+3)] × 517 = 295 L.
This question belongs to:
Maths
Ratio and Proportion
Question #2
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Ratio of present ages of A and B is 4:7. After 12 years, the ratio becomes 6:9. Present age of A is?
Correct Answer: Option A
Explanation:
Let ages 4k and 7k. Then (4k + 12)/(7k + 12) = 6/9. Solving gives k ≈ 11, age of A = 4*11 = 44.
Let ages 4k and 7k. Then (4k + 12)/(7k + 12) = 6/9. Solving gives k ≈ 11, age of A = 4*11 = 44.
This question belongs to:
Maths
Ratio and Proportion
Question #3
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Two numbers are in the ratio 13:11 and their sum is 287. Find the numbers.
Correct Answer: Option C
Explanation:
Numbers = 13k and 11k. 13k + 11k = 287 ⇒ k = 11. Thus, numbers are 143 and 121.
Numbers = 13k and 11k. 13k + 11k = 287 ⇒ k = 11. Thus, numbers are 143 and 121.
This question belongs to:
Maths
Ratio and Proportion
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