Time and Work MCQs for Competitive Examination
Solve the following problems.
Q. 1
A does 60% of a work in 15 days. He then calls B, and they together finish the remaining work in 5 days. How long B alone would take to do the whole work?
(A) 25 days
(B) 20 days
(C) 80 days
(D) 24 days
Answer: (A) 25 days
Explanation: N/A
Q. 2
Manjeet can do a work in 18 hours. If he is joined by Jaya who is 100% more efficient, at what time will they together finish the work?
(A) 6 hours
(B) 3 hours
(C) 12 hours
(D) 24 hours
Answer: (A) 6 hours
Explanation: N/A
Q. 3
Pannalal has done 1/3rd of a job in 20 days, Saiprasad completes the rest of the job in 10 days. In how many days can they together do the job?
(A) 12 days
(B) 6 days
(C) 3 days
(D) 24 days
Answer: (A) 12 days
Explanation: N/A
Q. 4
A can do a work in 20 days and B in 50 days. If they work on it together for 5 days, then what fraction of work is left?
(A) 13/20
(B) 1/3
(C) 1/6
(D) 2/9
Answer: (A) 13/20
Explanation: N/A
Q. 5
P and Q can do a project in 60 and 30 days respectively. In how many days can they complete 90% of the project if they work together?
(A) 9 days
(B) 27 days
(C) 36 days
(D) 18 days
Answer: (D) 18 days
Explanation: N/A
Q. 6
Chutki can bake 30 cakes in 15 hours. Chutki and Badki together can bake 90 cakes in 30 hours. How many cakes Badki can bake in 10 hours?
(A) 75
(B) 20
(C) 10
(D) 60
Answer: (C) 10
Explanation: N/A
Q. 7
Mahanath works 2 times as fast as Sahay. If Sahay can complete a job alone in 21 days, then in how many days can they together finish the job?
(A) 7 days
(B) 6 days
(C) 5 days
(D) 2 days
Answer: (B) 7 days
Explanation: N/A
Q. 8
Praful has done 1/2 of a job in 30 days, Sarabjit completes the rest of the job in 10 days. In how many days can they together do the job?
(A) 30 days
(B) 45 days
(C) 15 days
(D) 60 days
Answer: (C) 15 days
Explanation: N/A
Q. 9
Meghnad can do a piece of work in 45 hours. If he is joined by Jayshri, who is 50% more efficient, at what time will they together finish the work?
(A) 9 hours
(B) 6 hours
(C) 12 hours
(D) 18 hours
Answer: (D) 18 days
Explanation: N/A
Q. 10
Painter ‘A’ can paint a house in 10 days and ‘B’ can do it in 20 days. With the help of ‘C’, they did the job in 5 days only. Then, ‘C’ alone can do the job in:
(A) 20 days
(B) 10 days
(C) 40 days
(D) 50 days
Answer: (A) 20 km/hr
Explanation: N/A
Q. 11
Abhinav is 2 times as good a workman as Balwant and therefore is able to finish a job in 36 days less than Balwant. Working together, they can do it in
(A) 12 days
(B) 6 days
(C) 18 days
(D) 24 days
Answer: (D) 24 days
Explanation: N/A
Q. 12
A does 75% of a work in 25 days. He then calls in B and they together finish the remaining work in 5 days. How long B alone would take to do the whole work?
(A) 50 days
(B) 80 days
(C) 24 days
(D) 37.5 days
Answer: (A) 50 days
Explanation: N/A
Q. 13
Madhur works 2 times faster than Sagar. If Sagar can complete a job alone in 18 days, then in how many days can they together finish the job?
(A) 5 days
(B) 2 days
(C) 6 days
(D) 4 days
Answer: (C) 6 days
Explanation: N/A
Q. 14
P and Q can do a project in 6 and 12 days respectively. In how many days can they complete 25% of the project if they work together?
(A) 2 days
(B) 4 days
(C) 1 days
(D) 8 days
Answer: (C) 1 day
Explanation: N/A
Q. 15
A & B together finish a job in 24 days, while A, B & C together can finish the same job in 8 days. C alone will finish the job in
(A) 12 days
(B) 14 days
(C) 16 days
(D) 24 days
Answer: (D) 24 days
Explanation: N/A
Q. 16
A and B together can do a piece of work in 36 days, B and C together can do it in 24 days. A and C together can do it in 18 days. The three working together can finish the work in
(A) 8 days
(B) 16 days
(C) 36 days
(D) 32 days
Answer: (B) 16 days
Explanation: N/A
Q. 17
Suman can do a work in 3 days. Sumanta can do the same work in 2 days. Both of them finish the work together and get Rs 150. What is the share of Suman?
(A) Rs 90
(B) Rs 60
(C) Rs 70
(D) Rs 75
Answer: (B) Rs 60
Explanation: N/A
Q. 18
If 100 cats kill 100 mice in 100 days, then 4 cats would kill 4 mice in how many days?
(A) 4 days
(B) 3 days
(C) 40 days
(D) 100 days
Answer: (D) 100 days
Explanation: N/A
Q. 19
If 20 men working 8 hours per day can complete a piece of work in 21 days. How many hours per day must 48 men work to complete the same job in 7 days?
(A) 10
(B) 20
(C) 12
(D) 15
Answer: (A) 10
Explanation: N/A
Q. 20
A and B together can finish a work in 30 days. They worked for it for 20 days and then B left the work. The remaining work was done by A alone in 20 days more. In how many days can A alone finish the work?
(A) 48 days
(B) 50 days
(C) 54 days
(D) 60 days
Answer: (D) 60 days
Explanation: N/A