Milk and water are in ratio 9:4 in a 416 L mixture. Quantity of milk? MCQ with Answer and Explanation

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Milk and water are in ratio 9:4 in a 416 L mixture. Quantity of milk?

A. 288 L

B. 313 L

C. 128 L

D. 576 L

Answer: Option A

Solution (By JKSSB Mock Tests)

Total parts = 13. Milk = [9 / (9+4)] × 416 = 288 L.

This question belongs to: Maths Ratio and Proportion

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Question #1

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Ratio of present ages of A and B is 7:4. After 7 years, the ratio becomes 10:5. Present age of A is?

A. 168 years

B. 84 years

C. 78 years

D. 89 years

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Correct Answer: Option B

Explanation:
Let ages 7k and 4k. Then (7k + 7)/(4k + 7) = 10/5. Solving gives k ≈ 12, age of A = 7*12 = 84.

This question belongs to: Maths Ratio and Proportion

Question #2

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Two numbers are in ratio 10:6. Their difference is 122. What is their sum?

A. 544

B. 582

C. 272

D. 630

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Correct Answer: Option A

Explanation:
Numbers 10k, 6k. Difference |10-6|k = 122 ⇒ k = 30. Sum = (10+6)k ≈ 544.

This question belongs to: Maths Ratio and Proportion

Question #3

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If a:b = 3:6 and b:c = 6:12, then a:b:c = ?

A. 3:7:12

B. 6:12:24

C. 2:6:13

D. 3:6:12

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Correct Answer: Option D

Explanation:
Combine ratios: a:b = 3:6, b:c = 6:12 ⇒ a:b:c = 3:6:12.

This question belongs to: Maths Ratio and Proportion

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