O P Malhotra, S K Gupta and, Anubhuti Gangal Solutions for Chapter: Ratio and Proportion, Exercise 1: Exercise

The ratio of the length to the breadth of a rectangle is $7:4$. The perimeter of a rectangle is $220 \mathrm{m}$. If the length of a rectangle is $k \mathrm{m}$, find the value of $k$.

$81:63$_____ $60:35$ $\left(</>/=\right)$

$13:24$ _____ $17:32$ $\left(</>/=\right)$

Write the ratio in order from least to greatest.

$5:8, 3:16, 15:5$

Write the ratio in order from least to greatest.

$4:3, 6:5, 11:9$

The ratio between two numbers is $11:9$. If the sum of these two numbers is $40$. What is the product of the numbers?

The areas of three flats $A, B, C$ are in the ratio $5:6:8$ respectively. If the difference in the area of flat $C$ and flat $A$ is $270$ square meters, what is the area of flat $B$ in square meters?

A total of $91$ boys are seated in three rows. The ratio between the number of boys seated in first and second row is $5:2$ respectively and the ratio between the number of boys seated in the second and third row is $1:3$ respectively. How many boys are there in second row?