Time & Work Worksheet-3
-
A and B can complete a work in 15 days and 10 days respectively. They started doing the work together but after 2 days B had to leave and A alone completed the remaining work. The whole work was completed in:
(a) 8 days (b) 10 days (c) 12 days (d) 15 days
-
A can finish a work in 24 days, B in 9 days and C in 12 days. B and C start the work but are forced to leave after 3 days. The remaining work was done by A in:
(a) 5 days (b) 6 days (c) 10 days (d) 
days
-
A 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 them in 12 hours. All the machines are started at 9 a.m. while machine P is closed at 11 a.m. and the remaining two machines complete the work. Approximately at what time will the work be finished?
(a) 11:30 a.m. (b) 12 noon (c) 12:30 p.m. (d) 1 p.m.
-
A and B can do a piece of work in 30 days, while B and C can do the same work in 24 days and C and A in 20 days. They all work together for 10 days when B and C leave. How many days more will A take to finish the work?
(a) 18 days (b) 24 days (c) 30 days (d) 36 days
-
X and Y can do a piece of work in 20 days and 12 days respectively. X started the work alone and then after 4 days Y joined him till the completion of the work. How long did the work last?
(a) 6 days (b) 10 days (c) 15 days (d) 20 days
-
A and B can together finish a work in 30 days. They worked together for 20 days and then B Left. After another 20 days, A finished the remaining work. In how many days A alone can finish the job?
(a) 40 (b) 50 (c) 54 (d) 60
-
X can do a piece of work in 40 days. He works at it for 8 days and then Y finished it in 16 days How long will they together take to complete the work?
(a) 
days (b) 15 days (c) 20 days (d) 56 days
-
A, B and C together can complete a piece of work in 10 days. All the three started working at it together and after 4 days A left. Then B and C together completed the work in 10 more days. A alone could complete the work in:
(a) 15 days (b) 16 days (c) 25 days (d) 50 days
-
A does
of a work in 20 days. He then calls in B and they together finish the remaining work in 3 days. How long B alone would take to do the whole work?
(a) 23 days (b) 37 days (c) 
days (d) 40 days
-
A and B together can do a piece of work in 30 days. A having worked for 16 days, B finishes the remaining work alone in 44 days. In how many days shall B finish the whole work alone?
(a) 30 days (b) 40 days (c) 60 days (d) 70 days
-
A and B together can do a piece of work in 12 days, which B and C together can do in 16 days. After A has been working at it for 5 days and B for 7 days, C finishes it in 13 days. In how many days C alone will do the work?
(a) 16 (b) 24 (c) 36 (d) 48
-
A and B can do a piece of work in 45 days and 40 days respectively. They began to do the work together but A leaves after some days and then B completed the remaining work in 23 days. The number of days after which A left the work was:
(a) 6 (b) 8 (c) 9 (d) 12
-
A can do a piece of work in 14 days which B can do in 21 days. They begin together but 3 days before the completion of the work, A leaves off. The total number of days to complete the work is:
(a) 
(b) 
(c) 
(d) 
-
A, B and C can complete a work separately in 24, 36 and 48 days respectively. They started together but C left after 4 days of start and A left 3 days before the completion of the work. In how many days will the work be completed?
(a) 15 days (b) 22 days (c) 25 days (d) 35 days
-
A, B and C together earn Rs. 300 per day, while A and C together earn Rs. 188 and B and C together earn Rs. 152. The daily earning of C is:
(a) Rs. 40 (b) Rs. 68 (c) Rs. 112 (d) Rs. 150
Answer Key:
(1)-c; (2)-c; (3)-d; (4)-a; (5)-b; (6)-d; (7)-a; (8)-c; (9)-c; (10)-c; (11)-b; (12)-c; (13)-c; (14)-a; (15)-a
