80 L mixture, milk:water 3:1. To make 1:1, water added: MCQ with Answer and Explanation

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80 L mixture, milk:water 3:1. To make 1:1, water added:

A. 40 L

B. 30 L

C. 20 L

D. 50 L

Answer: Option A

Solution (By JKSSB Mock Tests)

Milk=60 L, water=20 L. For 1:1, water=60 L, add 40 L.

This question belongs to: Maths Percentage

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Practice More Percentage Questions

Question #1

0.75% of 2000 is:

A. 12.5

B. 17.5

C. 10

D. 15

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Correct Answer: Option D

Explanation:
0.0075 × 2000 = 15.

This question belongs to: Maths Percentage

Question #2

A shopkeeper sells an article at 20% profit. Had he bought it at 20% less and sold it for Rs. 10 less, he would have gained 25%. Cost price is:

A. Rs. 50

B. Rs. 45

C. Rs. 55

D. Rs. 40

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Correct Answer: Option A

Explanation:
CP=x, SP=1.2x. New CP=0.8x, new SP=1.2x-10 = 1.25×0.8x = x → 1.2x-10=x → 0.2x=10 → x=50.

This question belongs to: Maths Percentage

Question #3

A sum of money becomes Rs. 2800 in 2 years and Rs. 3250 in 5 years at simple interest. Find the rate of interest.

A. 5%

B. 4%

C. 6%

D. 7%

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Correct Answer: Option C

Explanation:
SI for 3 years = 3250 - 2800 = 450, SI per year = 150. Principal = 2800 - 2×150 = 2500. Rate = (150/2500)×100 = 6%.

This question belongs to: Maths Percentage

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