R K Bansal Solutions for Chapter: Unitary Method, Exercise 2: EXERCISE 7(B)

In $2 \mathrm{days}$ and $20 \mathrm{hours}$ a watch gains $20 \sec .$ Find, how much time the watch will take to gain $35 \sec .$  

$50$ men mow $32 \mathrm{hectares}$ of land in $3 \mathrm{days}$. How many days will $15 \mathrm{men}$ take to mow it?

The wages of $10$ workers for a six days week are $₹1200$. What are the one-day wages of one worker?

The wages of $10$ workers for a six days week are $₹1200$. What are the one-day wages of $4$ workers?

If $32$ apples weigh $2 \mathrm{kg} 800 \mathrm{g}$, how many apples will there be in a box, containing $35 \mathrm{kg}$ of apples?

A truck uses $20 \mathrm{litres}$ of diesel for $240 \mathrm{km}$. How many litres will be needed for $1200 \mathrm{km}$.

A garrison of $1200$ men has provisions for $15 \mathrm{days}$. How long will the provisions last if the garrison be increased by $600$ men?

A camp has provisions for $60$ pupils for $18 \mathrm{days}$. In how many days, the same provisions will finish off if the strength of the camp is increased to $72$ puplis?