Milk and water are in ratio 5:2 in a 305 L mixture. Quantity of milk? MCQ with Answer and Explanation

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Milk and water are in ratio 5:2 in a 305 L mixture. Quantity of milk?

A. 434 L

B. 265 L

C. 88 L

D. 217 L

Answer: Option D

Solution (By JKExamLibrary)

Total parts = 7. Milk = [5 / (5+2)] × 305 = 217 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 4:4. After 6 years, the ratio becomes 7:7. Present age of A is?

A. 100 years

B. 200 years

C. 96 years

D. 105 years

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Correct Answer: Option A

Explanation:
Let ages 4k and 4k. Then (4k + 6)/(4k + 6) = 7/7. Solving gives k ≈ 25, age of A = 4*25 = 100.

This question belongs to: Maths Ratio and Proportion

Question #2

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Two numbers are in the ratio 12:9 and their sum is 602. Find the numbers.

A. 672 and 504

B. 328 and 270

C. 365 and 225

D. 336 and 252

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Correct Answer: Option D

Explanation:
Numbers = 12k and 9k. 12k + 9k = 602 ⇒ k = 28. Thus, numbers are 336 and 252.

This question belongs to: Maths Ratio and Proportion

Question #3

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Find the mean proportional between 33 and 15.

A. 48

B. 25

C. 44

D. 22

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Correct Answer: Option D

Explanation:
Mean proportional = √(33 × 15) = √(495) = 22.

This question belongs to: Maths Ratio and Proportion

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