Percentage MCQ Set 9

PERCENTAGE MCQ SET 9

Q1. A number is first decreased by 28% and then increased by 28% . The number so obtained is 84 less than the original number . Find the value of the original number .

(a)15000

(b)1500

(c)10000

(d)1000

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Answer: C

Q2. The price of Rafale first increased by 16 2/3% and there after decreased by 7 1/7% . What was the change in total price .

(a)8 1/3% increase

(b)8 1/3% decrease

(c)None of these

(d)No change

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Answer: A

Q3. A worker has an increase of 12 ½% in her wages rate per hour but there is a drop of 10% in the number of hours worked per week . If her original weekly wages for a week of 40 hours is Rs. 38,400 , then the percentage increase in her total weekly wages is:

(a)1.25%

(b)2%

(c)2.25%

(d)1.15%

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Answer: A

Q4. Basir’s working hours per day were increased by 15% and his wages per hour were increased by 20% . By how much percent did his daily earning increase?

(a)40

(b)38

(c)35

(d)36

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Answer: B

Q5. h variables x and y are decreased by 20% . By this , the percentage value of the expression xy is decreased by.

(a)36%

(b)44%

(c)40%

(d)None of these

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Answer: D

Q6. When the price of a watch was reduced by 20% , the number of watches sold is increased by 40% . What was the effect on the sales in percentage?

(a)12% Increase

(b)30% Decrease

(c)12% Decrease

(d)30% Increase

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Answer: A

Q7. A number is first increased by 40% and then decreased by 25% , again increased by 15% and then decreased by 20% . What is the net increase per cent in the number?

(a)7.2% Increase

(b)3.4% Increase

(c)6.4% Increase

(d)3.4% Decrease

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 Answer: B

Q8. A person’s salary was decreased by 50% and subsequently increased by 50% and then again increased by 100% . How much percentage does he lose or gain?

(a)Loss of 40%

(b)Gain of 50%

(c)Gain of 25%

(d)Loss of 10%

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Answer: B

Q9. The number first increased by 16% and then increased by 14% . The number , so obtained , is now decreased by 30% . What is the net increase or decrease percent in the net increase or decrease percent in the original number (nearest to an integer) ?

(a)6% increase

(b)7% decrease

(c)No decrease

(d)9% decrease

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Answer: B

Q10. Consumption of wheat increases by 20% and expenditure increases by 50% . What will be the effect on price?

(a)20% increase

(b)20% decrease

(c)25% increase

(d)25% decrease

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Answer: C