NCERT Solutions for Chapter: Ratio and Proportion, Exercise 1: Exercise

The present ages of Seeta and Geeta ae in the ratio $3:4$. The product of their ages (in years) is $48$. Find the sum of their ages (in years).

If $\frac{30x+2y}{4x+y}=\frac{16}{3}$, then find $x:y$.

If $\frac{25p+14q}{5p+7q}=\frac{8}{3}$, then find $p:q$

Teena takes $12 h$ to go from her city to another city by train. If she goes by car, whose speed is $1.5$ times that of the train, then how much time will she take to cover the same distance?

If $243$ is the third proportional of $a$ and $b$, where $b:a=9:1$, then find the values of $a$ and $b$.

If $\frac{a}{b}=\frac{x}{y}=\frac{p}{q}$, then, $\frac{6a+9x+2p}{6b+9y+q}=$_____.

In covering $148 km$, a car consumes $8$ litres of petrol. How many kilometres will it go in $10$ litres of petrol?

Eight men can do a certain amount of work in $3$ days. Sixteen men can do the same amount of work in $6$ days.