40% of a number exceeds 25% of the same number by 30. What is 75% of the number? MCQ with Answer and Explanation

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40% of a number exceeds 25% of the same number by 30. What is 75% of the number?

A. 180

B. 150

C. 170

D. 160

Answer: Option B

Solution (By JKSSB Mock Tests)

0.4x - 0.25x = 0.15x = 30 → x = 200. 75% of 200 = 150.

This question belongs to: Maths Percentage

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Question #1

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The price of an article is increased by r% and then decreased by r%. If the net decrease is 1%, find r.

A. 8

B. 10

C. 12

D. 5

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Correct Answer: Option B

Explanation:
1 - r²/10000 = 0.99 → r² = 100 → r = 10.

This question belongs to: Maths Percentage

Question #2

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A number is 30% of another number. If the sum of the numbers is 390, find the larger number.

A. 260

B. 300

C. 270

D. 250

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Correct Answer: Option B

Explanation:
Let larger x, smaller 0.3x. 1.3x = 390 → x=300.

This question belongs to: Maths Percentage

Question #3

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A student needs 40% to pass. He gets 60 marks and fails by 20 marks. Maximum marks:

A. 220

B. 240

C. 200

D. 180

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Correct Answer: Option C

Explanation:
Pass = 80, 40% M = 80 → M = 200.

This question belongs to: Maths Percentage

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