B Nirmala Shastry Solutions for Exercise 3: EXERCISE 8.3

The cost of $5$ dozen mangoes is $₹ 750$. How many mangoes can be bought for $₹ 1050$?
 

The cost of $5$ dozen mangoes is $₹ 750$. What will be the cost of $36$ mangoes?
 

A labourer is paid $₹ 600$ for $8$ days. (i) How much will he be paid for 15 days? (ii) If he gets paid $₹ 1500$, for how many days has he worked?
 

The cost of  $6 \mathrm{m}$ of a dress material is $₹ 258$ . What is the cost of $16 \mathrm{m}$ of such material? How much of such material can be bought for $₹ 645$?
 

If weight of $18$ boxes is $7.2 \mathrm{kg}$, find the weight of $25$ such boxes.

The cost of $9$ books is $₹ 312$, find the cost of $15$ such books.
 

A car travels $198 \mathrm{km}$ with $22$ litres of petrol. How far can it travel with $15$ litres of petrol?
 

Ravi bought $15$ note books for $₹ 225$ and Reema bought $12$ such note books for $₹ 192$ . Who got the note books cheaper?