Arihant Expert Team Solutions for Exercise 1: PRACTICE QUESTIONS for Phase I

Three pipes A, B and C can fill a tank separately in$8, 10$and $20h$  respectively. Find the time taken by all the three pipe to up the tank when the pipes are opened together? 

One pipe can fill tank three times as fast as another pipe. If together the two pipes can fill the tank in $36$ min, the lower pipe one will be able to fill the tank in ?

A takes twice as much time as B and C takes thrice as much time as B to finish a work. Working together, they can finish the work in 12 days. Find the number of days needed for A to do the work alone?

$6$ boys can complete a piece of work in $16h$, In how many hours will$8$boys complete the same work?

A is thrice as good a workman as B and therefore is able to finish a Job in $30$ days less than B. How many days will they take to finish the job working together?

Total wages for a work is $Rs.1280$. A alone can do this piece of work in$8$days while B alone can do it in $12$days. If A and B work on alternate days, find share of A?

If A can do $\frac{1}{4}$of the work in$4$ days and B can does $\frac{1}{8}$ of the work in $3$ days, how much will A get if both work together and are paid $4500$ in all?

A alone can do a piece of work in $8$days and B alone in $12$days. A and B under-took to do it for$Rs.1908$. With the help of C they completed the work in$4$days How much is to be paid to C?