Q) 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? […]
Work and Time
Q) 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)
Q) A is 30% more efficient than B. How much time will they, working together, take to complete a job which A alone could have done in 23 days? a) 11 days               b) 13 days       Â
Q) A and B can do a job together in 7 days. A is 1 3/4 times as efficient as B. The same job can be done by A alone in : a) 9 1/3 days       b) 11 days        c) 12 1/4
Q) Twenty women can do a work in sixteen days. Sixteen men can complete the same work in fifteen days. What is the ratio between the capacity of a man and a woman? a) 3 : 4Â Â Â Â Â Â Â b) 4 : 3Â Â Â Â Â Â Â Â c) 5
Twenty women can do a work in sixteen days. Sixteen men can complete the same work in Read More »
Q) Dev completed the school project in 20 days. How many days will Arun take to complete the same work if he is 25% more efficient than Dev? a) 10 days       b) 12 days        c) 16 days     Â
Q) Sakshi can do a piece of work in 20 days. Tanya is 25% more efficient than Sakshi. The number of days taken by Tanya to do the same piece of work is: a) 15 days       b) 16 days        c) 18 days
Q) A works twice as fast as B. If B can complete a work in 12 days independently, the number of days in which A and B can together finish the work in : a) 4 days       b) 6 days        c) 8
Q) A takes twice as much time as B or thrice as much time as C to finish a piece of work. Working together, they can finish the work in 2 days. B can do the work alone in: a) 4 days       b) 6 days    Â
Q) 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