Arihant Expert Team Solutions for Exercise 1: Practice Questions

$A$ can do $\frac{3}{4}$ of the work in $12$ days. In how many days can he finish $\frac{1}{8}$ of the work?

If $18$ men and $10$ boys can do the same one day work as $10$ men and $22$ boys can do, then, find the amount that a man should be paid per day if a boy gets $\mathrm{Rs}. 10$ per day.

Rani and Sneha working separately can finish a job in $8 \mathrm{hours}$ and $12 \mathrm{hours}$ respectively. If they work for an hour alternatively, Rani beginning at $9 : 00 \mathrm{am}$ . When will the job be finished?

After working for $8$days, Anil finds that only $\frac{1}{3}$ of the work has been done. He employs Rakesh who is $60\%$ efficient as Anil. How many more days will Anil take to complete the job?

$A, B$ and $C$ can do a job alone in $6, 12$ and $24$ days respectively. In how much time will they do it together?

$A$ can do $\frac{1}{3}$ of the work in $5$ days and $B$ can do $\frac{2}{5}$ of the work in $10$ days. In how many days both $A$ and $B$ together can do the same work?

$A$ is thrice as efficient as $B$ and $B$ is twice as efficient as $C$. If $A, B$ and $C$ work together how long would they take to complete a job? If $B$ takes $10$ days to complete the same job.

$12$ men can complete a work in $18$ days. $6$ days after they started working,$4$ men joined them. How many days will all of them take to finish the remaining work?