mathematics MCQs – Page 147

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 Review each marked answer and report any item that may be outdated or unclear.

mathematics Mcqs

2921. Jameel can complete a task in 15 hours and Nasir can complete the same task in 12 hours. Jameel starts the task at 9:00 am and stops working at 2:00pm. Nasir starts working on the task at 4:00 pm. At what time is the task completed?
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A. 12:00 am

B. 10:00 PM

C. 2:00 AM

D. 12:00 PM

2922. 40% of a number is more than 20% of 650 by 190. Find the number?
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A. 900

B. 800

C. 700

D. 600

2923. Find two number whose sum is 28 and the difference is 4 _____________?
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A. 15,13

B. 18,10

C. 14,12

D. 12,16

2924. Running at the same constant rate, 6 identical machines can produce a total of 270 bottles per minute. At this rate, how many bottles could 10 such machines produce in 4 minutes?
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A. 1080

B. 2700

C. 1800

D. 450

2925. If 3 men or 4 women can construct a wall in 43 days, then the number of days that 7 men and 5 women take to construct it is :
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A. 18 days

B. 16 days

C. 12 days

D. 14 days

2926. What percent of 120 are 90?
0

A. 33%

B. 50%

C. 25%

D. 75%

2927. If 10 workers can make 10 tables in 10 days, then how many days would it take for 5 workers to make 5 tables?
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A. 5

B. 25

C. 1

D. 10

2928. P,Q and R together earn Rs.1620 in 9 days. P and R can earn Rs.600 in 5 days. Q and R in 7 days can earn Rs.910. How much amount does R can earn per day?
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A. Rs.100

B. Rs.90

C. Rs.70

D. Rs.40

2929. P can do a work in 24 days. Q can do the same work in 9 days and R can do the same in 12 days. Q and R start the work and leave after 3 days. P finishes the remaining work in_________days.
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A. 9

B. 12

C. 11

D. 10

2930. If y exceeds x by 20%, then x is less than y by_______?
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A. 16.60%

B. 16%

C. 16.33%

D. 16 2/3 %

2931. A and B can together do a piece of work in 15 days. B alone can do it in 20 days. In how many days can A alone do it ?
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A. 50 days

B. 70 days

C. 60 days

D. 40 days

2932. A completes 80% of a work in 20 days. Then B also joins and A and B together finish the remaining work in 3 days. How long does it need for B if he alone completes the work?
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A. 22 days

B. 22 days

C. 31 days

D. 37 days

2933. 8 men can dig a pit in 20 days. If a man works half as much again as a boy, then 4 men and 9 boys can dig a similar pit in:__________?
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A. 20 days

B. 16 days

C. 18 days

D. 12 days

2934. Kamal will complete work in 20 days. If Suresh is 25% more efficient than Kamal, he can complete the work in________days.
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A. 16

B. 15

C. 14

D. 11

2935. A is thrice as good a work man as B and takes 10 days less to do a piece of work than B takes. B can do the work in:___________?
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A. 14 days

B. 15 days

C. 30 days

D. 16 days

2936. 3 men and 7 women can complete a work in 10 days . But 4 men and 6 women need 8 days to complete the same work . In how many days will 10 women complete the same work?
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A. 40

B. 30

C. 50

D. 13

2937. 40 is subtracted from 60% of a number, the result is 50. Find the number?
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A. 130

B. 110

C. 140

D. 150

2938. Efficiency of Rashid and Danish are in the ratio 5:8. If Danish takes 51 days less than Rashid to complete the work, find the time taken by Rashid to complete the work.
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A. 118 days

B. 136 days

C. 85 days

D. 126 days

2939. P takes twice as much time as Q or thrice as much time as R to finish a piece of work. They can finish the work in 2 days if work together. How much time will Q take to do the work alone?
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A. unt of work Q does in 1 day = 2/x

B. P takes x days to complete the work

C. unt of work P does in 1 day = 1/x

D. 6

E. t; Q takes 12/2 days = 6 days to complete the work

F. = 2

2940. What is the Arithmetic Mean of the following data3,6,9,12,15.
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A. 12

B. 8

C. 7

D. 9

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