Select the correct answerX 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?Options6 days15 days20 days10 days

Select the correct answerX, Y and Z complete a work in 6 days. X or Y alone can do the same work in 16 days. In how many days Z alone can finish the same work?Options12 days24 days36 days16 days

Select the correct answerA, B and C can do a work in 20 days, 24 days and 30 days respectively. A and B left the work 4 days before completion of the work, then whole work will finish in how many days?Options10 14/1511 8/159 2/312 7/15

Select the correct answerA and B together can do a piece of work in 12 days which B and C together do in 16 days. If A works for 5 days, B works for 7 days than C completes the remaining work in 13 days. In how much time B alone does the whole work?Options24 days48 days16 days12 days

Select the correct answerA work can be completed by P and Q in 12 days, Q and R in 15 days, R and P in 20 days. In how many days alone P can finish the work?Options10 days30 days60 days20 days

Select the correct answerA can complete a piece of work in 15 days and B alone can do it in 10 days. B works at it for 5 days and then leaves. In how many days, A alone can finish the remaining work?Options7 days8 days8.5 days7.5 days