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Q) In the bottom of a water tank, there are two drains A and B. If only A is open, it takes 30 minutes to empty a full tank and if only B is open, it takes 20 minutes. If for 10 minutes both drains are open, then B is closed, how much time it […]
Q) A can finish a work in 45 days and B can do the same work in 40 days. If A and B started working together and after some days A left. B continued working and finished the balance work in 23 days. How many days did A work? a) 5 days   Â
Q) 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   Â
Q) 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) 13 1/3 days       b) 15 days       c)
Q) A and B can do a work in 8 days, B and C can do the same work in 12 days. A, B and C together can finish it in 6 days. A and C together will do it in : a) 4 days           b)
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?
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 »