80 L mixture, 20% water. Water added to make 50%: MCQ with Answer and Explanation

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80 L mixture, 20% water. Water added to make 50%:

A. 40 L

B. 52 L

C. 44 L

D. 48 L

Answer: Option D

Solution (By JKSSB Mock Tests)

Milk=64 L, water=16 L. For milk 50%, total = 128 L, add 48 L water.

This question belongs to: Maths Percentage

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Practice More Percentage Questions

Question #1

Candidate got 35% of valid votes and lost by 2100. 20% votes invalid. Total voters:

A. 10000

B. 8000

C. 9000

D. 8750

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Correct Answer: Option D

Explanation:
Valid votes V, winner 65%V, loser 35%V, margin 30%V=2100 → V=7000. Total T, 0.8T=7000 → T=8750.

This question belongs to: Maths Percentage

Question #2

A person's salary increased from 4000 to 5000. What is the percentage increase?

A. 30%

B. 25%

C. 35%

D. 20%

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Correct Answer: Option B

Explanation:
Increase = 5000 - 4000 = 1000. Percentage increase = (1000 / 4000) * 100 = 25%.

This question belongs to: Maths Percentage

Question #3

A's income is 25% more than B's. B's expenditure is 40% less than A's. If A saves 20% of his income, what percent does B save?

A. 30%

B. 40%

C. 35%

D. 45%

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Correct Answer: Option B

Explanation:
Let B inc=100, A=125. A sav=25, A exp=100. B exp=0.6×100=60, B sav=100-60=40, i.e. 40%.

This question belongs to: Maths Percentage

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