R. Gupta Solutions for Exercise 1: EXERCISE

If the rent for grazing $40$ cows for $20$ days is $Rs.370$, how many cows can graze for $30$ days on $Rs.111$?

If six men working for $8$ hours a day, earn $₹840$ per week, then $9$ men working for $6$ hours a day will earn how much per week?

If $20$ men working for $7$ hours a day can do a piece of work in $10$ days, in how many days will $15$ men working for $8$ hours a day do the same piece of work?

$120$ men had provision for $200$ days. After $5$ days, $30$ men died due to an epidemic. The remaining food will lasts for

$20$ men completed one third of a piece of work in $20$ days. How many more men should be employed to finish the rest of the work in $25$ more days?

If $12$ boys can earn $₹240$ in $5$ days, how many boys can earn $₹420$ in $21$ days?

$2$ men and $7$ boys can do a piece of work in $14$ days. $3$ men and $8$ boys can do the same work in $11$ days. $8$ men and $6$ boys can do $3$ times the amount of work in.

If $(4/5)$th of a cistern is filled in $1$ minute . How much time is required to fill the remaining part of this ?