Time & Work

Time & Work Worksheet-1

1. A does a work in 10 days and B does the same work in 15 days. In how many days they together will do the same work?

(a) 5 days           (b) 6 days          (c) 8 days           (d) 9 days

Time & Work Worksheet-2

1. A and B can do a piece of work in 72 days; B and C can do it in 120 days; A and C can do it in 90 days. In what time can A alone do it?

(a) 80 days        (b) 100 days      (c) 120 days      (d) 150 days

2. A and B can do a piece of work in 5 days; B and C can do it in 7 days; A and C can do it in 4 days. Who among these will take the least time if put to do it alone?

(a) A                    (b) B                   (c) C                    (d) Data inadequate

Time & Work Worksheet-3

1. 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

2. 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