R S Aggarwal Solutions for Chapter: Ratio, Proportion and Unitary Method, Exercise 3: EXERCISE 10C

A labourer earns $₹1980$ in $12$ days. In how many days will he earn $₹2640$?

The weight of $65$ books is $13 \mathrm{kg}$. What is the weight of $80$ such books?

The weight of $65$ books is $13 \mathrm{kg}$. How many such books weigh $6.4 \mathrm{kg}$?

If $48$ boxes contain $6000$ pens, how many such boxes will be needed for $1875$ pens?

$24$ workers can build a wall in $15$ days. How many days will $9$ workers take to build a similar wall?

$40$ men can finish a piece of work in $26$ days. How many men will be needed to finish it in $16$ days?

In an army camp, there were provisions for $550$ men for $28$ days. But, $700$ men attended the camp. How long did the provisions last?

A given quantity of rice is sufficient for $60$ persons for $3$ days. How many days would the rice last for $18$ persons?