mathematics MCQs – Page 146

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 Review each marked answer and report any item that may be outdated or unclear.

2901. After decreasing 24% in the price of an article costs Rs.912. Find the actual cost of an article?
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A. 1300

B. 1400

C. 1100

D. 1200
2902. A can do (1/3) of a work in 5 days and B can do (2/5) of the work in 10 days. In how many days both A and B together can do the work ?
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A. None of these

B. 48/5 days

C. 44/6 days

D. 75/8 days
2903. How much 60% of 50 is greater than 40% of 30?
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A. 18

B. 20

C. 15

D. 13

2904. P and Q can complete a work in 20 days and 12 days respectively. P alone started the work and Q joined him after 4 days till the completion of the work. How long did the work last?
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A. 15 days

B. 12 days

C. 10 days

D. 5 days

2905. 85% of a number is added to 24, the result is the same number. Find the number?
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A. 160

B. 150

C. 140

D. 130

2906. If 28 men can finish a work in 15 days, 21 men can finish the same work in___________?
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A. 15 days

B. 20 days

C. 14 days

D. 24 days

2907. Two pipes P and Q can fill a cistern in 12 min. and 15 min. respectively but a third pipe R can empty the full tank in 6 min. P and Q are kept open for 5 min. in the beginning and then R is also opened. In what time is the cistern emptied ?
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A. 40 min

B. 35 min

C. 45 min

D. 30 min

2908. If daily wages of a man is double to that of a woman, how many men should work for 25 days to earn Rs.14400? Given that wages for 40 women for 30 days are Rs.21600.
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A. 16

B. 15

C. 14

D. 13

2909. Machine P can print one lakh books in 8 hours. Machine Q can print the same number of books in 10 hours while machine R can print the same in 12 hours. All the machines started printing at 9 A.M. Machine P is stopped at 11 A.M. and the remaining two machines complete work. Approximately at what time will the printing of one lakh books be completed?
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A. 3:00 PM

B. 2:00 PM

C. 11:00 AM

D. 1:00 pm
2910. 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. 9(2/5) days

B. 9(1/5) days

C. 10 days

D. 9(3/5) days
2911. If 12 men work 8 hours a day to complete a work in 10 days, how many men working 12 hours a day can complete the work in 5 days?
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A. 8

B. 12

C. 4

D. 16
2912. Today is khadijas birthday. After one year, she will become two times as she was ten years ago. current age of Khadija?
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A. 19

B. 21

C. 20

D. 22

2913. Two taps X and Y can fill a tank in 10 hrs. and 15 hrs.respectively. If the both taps are opened together, the tank will be full in_________?
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A. 6 hrs.

B. 5 hrs.

C. 4 hrs,

D. 3 hrs.

2914. A leak in the lower portion of a tank can empty the full tank in 9 hrs. An inlet pipe fills water at the rtae of 10 lit. a minute. When the tank is full, the inlet is opened and due to leak, the tank is empty in 16 hrs. How many litres does the cistern hold ?
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A. 12,342 litres.

B. 12,566 litres.

C. None of thes

D. 12,444 litres

2915. P can do a work in the same time in which Q and R together can do it. If P and Q work together, the work can be completed in 10 days. R alone needs 50 days to complete the same work. then Q alone can do it in__________?
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A. 20 days

B. 15 days

C. 25 days

D. 30 days

2916. A can lay a railway track between two given stations in 16 days and B can do the same job in 12 days. With help of C, they did the job in 4 days only. Then, C alone can do the job in_________?
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A. 4

B. 9

C. 10

D. 9.6
2917. If 6 men take 9 days to complete a work, how many men can complete the work in 3 days?
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A. 12 men

B. 18 men

C. 2 men

D. 9 men

2918. 1 acre is equal to ________square foot?
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A. 43560 square foot

B. 34343 square foot

C. 45434 square foot

D. 43572 square foot

2919. 60% of a number is added to 120, the result is the same number. Find the number?
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A. 200

B. 500

C. 400

D. 300
2920. What is the Sum of First 70 Odd Numbers?
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A. 4970

B. 4960

C. 4900

D. None of these