Milk and water are in ratio 4:5 in a 371 L mixture. Quantity of milk? MCQ with Answer and Explanation

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Milk and water are in ratio 4:5 in a 371 L mixture. Quantity of milk?

A. 207 L

B. 164 L

C. 214 L

D. 328 L

Answer: Option B

Solution (By JKExamLibrary)

Total parts = 9. Milk = [4 / (4+5)] × 371 = 164 L.

This question belongs to: Maths Ratio and Proportion

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Practice More Ratio and Proportion Questions

Question #1

If a:b = 4:7 and b:c = 7:10, then a:b:c = ?

A. 4:7:10

B. 8:14:20

C. 4:8:10

D. 3:7:11

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Correct Answer: Option A

Explanation:
Combine ratios: a:b = 4:7, b:c = 7:10 ⇒ a:b:c = 4:7:10.

This question belongs to: Maths Ratio and Proportion

Question #2

Ratio of present ages of A and B is 4:7. After 11 years, the ratio becomes 5:8. Present age of A is?

A. 80 years

B. 36 years

C. 40 years

D. 45 years

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Correct Answer: Option C

Explanation:
Let ages 4k and 7k. Then (4k + 11)/(7k + 11) = 5/8. Solving gives k ≈ 10, age of A = 4*10 = 40.

This question belongs to: Maths Ratio and Proportion

Question #3

Two numbers are in ratio 7:4. Their difference is 143. What is their sum?

A. 372

B. 264

C. 132

D. 290

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Correct Answer: Option B

Explanation:
Numbers 7k, 4k. Difference |7-4|k = 143 ⇒ k = 47. Sum = (7+4)k ≈ 264.

This question belongs to: Maths Ratio and Proportion

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