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Question (11)

QN0029423

A machine loses 15% of its value every year. If its present value is ₹40,000, what will be its value after one year?

(A) ₹32,000
(B) ₹34,000
(C) ₹36,000
(D) ₹38,000

Correct Answer: B

Explanation:

Value after one year = 85% of ₹40,000 = ₹34,000.

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Question (12)

QN0029424

A school has 60% boys. If 40% of the boys play football, what percentage of the entire school consists of boys who play football?

(A) 20%
(B) 24%
(C) 30%
(D) 40%

Correct Answer: B

Explanation:

Percentage of boys playing football = 60% × 40% = 24%.

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Question (13)

QN0029425

A product's price is increased by 20% and later decreased by 20%. Compared to the original price, the final price is

(A) unchanged
(B) 4% more
(C) 4% less
(D) 8% less

Correct Answer: C

Explanation:

Assume original price ₹100. Final price = 100 × 1.2 × 0.8 = ₹96, i.e., 4% less.

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Question (14)

QN0029426

A cake shop offers successive discounts of 25% and 10%. What is the effective discount?

(A) 32.5%
(B) 35%
(C) 30%
(D) 27.5%

Correct Answer: A

Explanation:

Effective price factor = 0.75 × 0.90 = 0.675. Effective discount = 32.5%.

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Question (15)

QN0029427

A person spends 35% of his salary on rent and 25% on food. What percentage of salary remains?

(A) 35%
(B) 40%
(C) 45%
(D) 50%

Correct Answer: B

Explanation:

Total spent = 60%. Remaining salary = 100% − 60% = 40%.

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Question (16)

QN0029428

The price of a notebook increased from ₹80 to ₹92. The percentage increase is

(A) 10%
(B) 12%
(C) 15%
(D) 20%

Correct Answer: C

Explanation:

Increase = ₹12. Percentage increase = (12/80) × 100 = 15%.

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Question (17)

QN0029429

A company earned a revenue of ₹12 lakh and had expenses of ₹9 lakh. What was its profit percentage with respect to expenditure?

(A) 25%
(B) 30%
(C) 33⅓%
(D) 40%

Correct Answer: C

Explanation:

Profit = ₹3 lakh. Profit percentage = (3/9) × 100 = 33⅓%.

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Question (18)

QN0029430

A student answered 84% questions correctly in a test containing 50 questions. How many questions did the student answer correctly?

(A) 40
(B) 41
(C) 42
(D) 44

Correct Answer: C

Explanation:

Correct answers = 84% of 50 = 42.

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Question (19)

QN0029431

A fixed deposit grows from ₹50,000 to ₹60,500 in one year due to annual compounding. What was the rate of interest?

(A) 8%
(B) 10%
(C) 12%
(D) 21%

Correct Answer: D

Explanation:

Growth factor = 60500/50000 = 1.21. Hence, rate = 21%.

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Question (20)

QN0029432

A rectangle's length is increased by 25% while its breadth is reduced by 20%. The area of the rectangle

(A) increases by 5%
(B) remains unchanged
(C) decreases by 5%
(D) decreases by 10%

Correct Answer: B

Explanation:

New area factor = 1.25 × 0.80 = 1. Hence, the area remains unchanged.

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Question (11)

A machine loses 15% of its value every year. If its present value is ₹40,000, what will be its value after one year?

Explanation:

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Question (12)

A school has 60% boys. If 40% of the boys play football, what percentage of the entire school consists of boys who play football?

Explanation:

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Question (13)

A product's price is increased by 20% and later decreased by 20%. Compared to the original price, the final price is

Explanation:

Link:

Question (14)

A cake shop offers successive discounts of 25% and 10%. What is the effective discount?

Explanation:

Link:

Question (15)

A person spends 35% of his salary on rent and 25% on food. What percentage of salary remains?

Explanation:

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Question (16)

The price of a notebook increased from ₹80 to ₹92. The percentage increase is

Explanation:

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Question (17)

A company earned a revenue of ₹12 lakh and had expenses of ₹9 lakh. What was its profit percentage with respect to expenditure?

Explanation:

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Question (18)

A student answered 84% questions correctly in a test containing 50 questions. How many questions did the student answer correctly?

Explanation:

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Question (19)

A fixed deposit grows from ₹50,000 to ₹60,500 in one year due to annual compounding. What was the rate of interest?

Explanation:

Link:

Question (20)

A rectangle's length is increased by 25% while its breadth is reduced by 20%. The area of the rectangle

Explanation:

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