Candidate A got 60% valid votes, defeated B by 3000 votes. 25% invalid. Total votes: MCQ with Answer and Explanation

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Candidate A got 60% valid votes, defeated B by 3000 votes. 25% invalid. Total votes:

A. 15000

B. 22500

C. 17500

D. 20000

Answer: Option D

Solution (By JKSSB Mock Tests)

Valid V, margin 0.2V=3000 → V=15000. Total T, 0.75T=15000 → T=20000.

This question belongs to: Maths Percentage

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Practice More Percentage Questions

Question #1

What percent is 250 g of 2 kg?

A. 10%

B. 20%

C. 12.5%

D. 15%

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Correct Answer: Option C

Explanation:
2 kg = 2000 g, (250/2000)×100 = 12.5%.

This question belongs to: Maths Percentage

Question #2

A boat takes 6 hours to travel 16 km upstream and 24 km downstream, and it also takes 6 hours to travel 12 km upstream and 36 km downstream. Find the speed of the boat in still water.

A. 5 kmph

B. 12 kmph

C. 10 kmph

D. 8 kmph

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Correct Answer: Option D

Explanation:
Let 1/(u-v)=a, 1/(u+v)=b. 16a+24b=6, 12a+36b=6. Solve: a=1/4, b=1/12 → u-v=4, u+v=12 → u=8.

This question belongs to: Maths Percentage

Question #3

The price of an article is increased by 25% and then decreased by x%. If the net effect is no change, find x.

A. 20

B. 25

C. 22.5

D. 30

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Correct Answer: Option A

Explanation:
1.25 × (1 - x/100) = 1 → 1 - x/100 = 0.8 → x/100 = 0.2 → x=20.

This question belongs to: Maths Percentage

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