mathematics MCQs – Page 34

Practise multiple-choice questions from mathematics for competitive examinations and subject revision. Review each marked answer and report any item that may be outdated or unclear.

661. A and B can finish a piece of work in 20 days .B and C in 30 days and C and A in 40 days. In how many days will A alone finish the job?
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A. 44

B. 34(2/7)

C. 45

D. 48
662. Walking at 80% of his usual speed, a man is 10 mins late to his office. Find the usual time taken by hime to reach his office.
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A. 40 minutes

B. 20 minutes

C. 30 minutes

D. 50 minutes

663. A man invested Rs. 14,400 in Rs.100 shares of a company at 20% premium. If the company declares 5% dividend at the end of the year , then how much does he get?
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A. Rs. 600

B. Rs. 650

C. Rs. 720

D. Rs. 500

664. Twelve men can do a work in twenty days while twenty women can finish the same work in sixteen days. Find the ratio between the capacity of a man and a woman.
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A. 5:03

B. 4:3

C. 5:04

D. 3:04

665. P, Q and R can complete a work in 24, 6 and 12 days respectively. The work will be completed in________days if all of them are working together.
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A. 3 3?7

B. 5

C. 2

D. 4

666. wo pipes X and Y fill a tank in 15 hrs. and 20 hrs. respectively, while a third pipe Z can empty the full tank in 25 hrs. All the three pipes are opened in the beginning. After 10 hrs. Z is closed. In how much time, will the tank be full ?
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A. 16 hrs

B. 18 hrs

C. 14 hrs

D. 12 hrs
667. Compound interest earned on a sum for the second and the third years are Rs.1200 and Rs.1440 respectively. Find the rate of interest?
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A. 24% p.a.

B. None of these.

C. 22% p.a.

D. 18% p.a.

E. 20% p.a.
668. Mansoor-Ul-Haque and Aaqib are working on a special assignment. Mansoor-Ul-Haque needs 6 hours to type 32 pages on a computer and Aaqib needs 5 hours to type 40 pages. If both of them work together on two different computers, how much time is needed to type an assignment of 110 pages?
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A. 7 hour 15 minutes

B. 7 hour 30 minutes

C. 8 hour 15 minutes

D. 8 hour 30 minutes

669. A sum of money placed at compound interest doubles itself in 5 years in how many years it would to 8 times of itself at the same rate of interest?
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A. 15 years

B. 20 years

C. 10 years

D. 7 years

670. The compound interest earned by Sunil on a certain amount at the end of two years at the rate of 8% p.a. was Rs.2828.80. Find the total amount that Sunil got back at the end of two years in the form of principal plus interest earned.
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A. None of these

B. Rs.18,828.80

C. Rs.18,028.80

D. Rs.17,828.80

E. Rs.19,828.80
671. If X and Y complete a certain work in 10 days, Y and Z in 16 days and X and Z in 22 days, find the time required for each one to complete the work while working separately.
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A. 40, 30, 120 days

B. 120, 40, 60 days

C. 120, 60, 80 days

D. 30, 40, 60 days

672. A and B can do a piece of work in 21 and 24 days respectively.They start the work together and after some days, A leaves and B completes the rest of the task in 9 days. After how many days did A leave?
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A. 6

B. 8

C. 7

D. 5

673. A car is running at a speed of 108 kmph. What distance will it cover in 15 seconds ?
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A. 45 metres

B. 55 metres

C. Cannot be determined

D. 450 metres
674. Jameel invested an amount of Rs.17400 for two years. Find the rate of compound interest that will fetch him an amount of Rs.1783.50 at the end of two years?
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A. 4% p.a.

B. 5% p.a.

C. None of these

D. 8% p.a.

E. 6% p.a.

675. A man gets a simple interest of Rs.500 on a certain principal at the rate of 5% p.a in two years. Find the compound interest the man will get on twice the principal in two years at the same rate.
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A. Rs.250

B. None of these.

C. Rs.500

D. Rs.5062.50

E. Rs.5012.50

676. Find the income derived from 88 shares of Rs. 25 each at 5 premium, brokerage being (1/4) per share and the rate of dividend being 7(1/2) % per annum.
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A. 201

B. 150

C. 165

D. 180

677. A and B can do a piece of work in 12 days; B and C in 15 days; C and A in 20 days. A alone can do the work in__________?
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A. 20 days

B. 30 days

C. none of these

D. 40 days

678. In a race, a car travelled at a speed of 150 kmph. If it had travelled at 180 kmph, it would have completed the race before 3 minutes. Find the length of the track.
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A. 40 km

B. 45 km

C. 50 km

D. 30 km

679. A man buys Rs. 50 shares in a company which pays 10% dividend. If the man gets 12.5% on his investment, at what price did he buy the shares ?
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A. Rs. 37.50

B. Rs 52

C. Rs. 48

D. Rs. 40
680. P can lay railway track between two stations in 16 days. Q can do the same job in 12 days. With the help of R, they completes the job in 4 days. How much days does it take for R alone to complete the work?
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A. 10 days

B. 9(3/5) days

C. 9(1/5) days

D. 9(2/5) days