80% passed English, 70% Maths, 60% both. % failed both: MCQ with Answer and Explanation

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80% passed English, 70% Maths, 60% both. % failed both:

A. 5%

B. 10%

C. 15%

D. 20%

Answer: Option B

Solution (By JKSSB Mock Tests)

Pass at least one = 80+70-60=90%, fail both = 10%.

This question belongs to: Maths Percentage

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Question #1

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The cost of an article is Rs. 1200. It is marked up by 50% and then a discount of 40% is given. Find the selling price.

A. Rs. 1180

B. Rs. 1080

C. Rs. 1120

D. Rs. 1020

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Correct Answer: Option B

Explanation:
MP = 1200×1.5=1800, SP=1800×0.6=1080.

This question belongs to: Maths Percentage

Question #2

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After spending 85% of his income, a man saves Rs. 4500. His income is:

A. 30000

B. 28000

C. 32000

D. 25000

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Correct Answer: Option A

Explanation:
Savings 15% = 4500, income = 4500/0.15 = 30000.

This question belongs to: Maths Percentage

Question #3

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If 20% of a number is 45, what is the number?

A. 225

B. 300

C. 250

D. 200

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Correct Answer: Option A

Explanation:
Let the number be x. (20 / 100) * x = 45 implies x = 45 * 5 = 225.

This question belongs to: Maths Percentage

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