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basic maths MCQs

Practise focused basic maths questions with marked answers for exam preparation and subject revision.

basic maths Mcqs

1. P and Q can complete a work in 15 days and 10 days respectively. They started the work together and then Q left after 2 days. P alone completed the remaining work. The work was finished in__________days.
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A. 22

B. 12

C. 20

D. 15

2. P, Q and R can do a work in 20, 30 and 60 days respectively. How many days does it need to complete the work if P does the work and he is assisted by Q and R on every third day?
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A. 14 days

B. 15 days

C. 9 days

D. 10 days

3. A leak in the bottom of a tank can empty the full tank in 6 hrs. An inlet pipe fills water at the rate of 4 lit. a minute. When the tank is full, the inlet is opened and due to the leak, the tank is empty in 8 hrs. The capacity of the tank in liters is_________?
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A. 6,890 litres

B. 5,760 litres

C. 5,750 litres

D. None of these

4. A, B and C together earn Rs.150 per day while A and C together earn Rs.94 and B and C together earn Rs.76. The daily earning of C is:__________?
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A. 25 Rs.

B. 10 Rs,

C. 20 Rs.

D. 15 Rs,

5. 10 men can complete a work in 7 days. But 10 women need 14 days to complete the same work. How many days will 5 men and 10 women need to complete the work?
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A. 4

B. 7

C. 6

D. 5

6. 12 buckets of water fill a tank when the capacity of each bucket is 13.5 litres. How many buckets will be needed to fill the same tank, if the capacity of each bucket is 9 litres?
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A. 18

B. 15

C. 14

D. 16

7. A tap can fill a tank in 32 min. and another can empty it in 16 min. If the tank is already half full and both the tanks are opened together, the tank will be_________?
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A. 14 min

B. 12 min

C. 16 min

D. 20 min

8. 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. 12 hrs

B. 18 hrs

C. 14 hrs

D. 16 hrs

9. If 6 men can make 10 sofas in 2 days, then 8 men can make 8 sofas in__________?
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A. 1.2 days

B. 1 day

C. 1.8 days

D. 1.5 days

10. 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

11. 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

12. How much 60% of 50 is greater than 40% of 30?
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A. 18

B. 20

C. 15

D. 13

13. 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

14. 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

15. 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

16. 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

17. 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

18. 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

19. 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

20. 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

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