Arihant Expert Team Solutions for Exercise 1: Practice Questions

At present, Anil is $1.5$times of Purvi’s age. $8$ years hence, the respective ratio between Anil and Purvi’s ages will be $25:18$. What is Purvi’s present age?

The mean proportion of $1.21$ and $0.09$ is:

$22$ carat gold is mixed with $18$ carat gold in the ratio $1:2$ to get $x$ carat gold, then the value of $x$ is _____.

A man has some hens and cows. If the number of heads $:$ number of feet is $12:35$, find out the number of hens, if the number of heads alone is $48$.

Two numbers are such that the ratio between them is $4:7$. If each is increased by $4$,  the ratio becomes $3:5$. The larger number is _____ .

If the annual income of $\mathrm{A}, \mathrm{B}$ and$\mathrm{C}$  are in the ratio $1:3:7$ and the total annual income of $\mathrm{A}$  and $\mathrm{C}$ is $₹800000$, then the monthly salary of $\mathrm{B}$ (in $₹$) is _____ .

The ratio of successful and unsuccessful examinees in an examination in a school is $6:1$. The ratio would have been $9:1$, if $6$ more examinees had been successful. The total number of examinees is _____ .

Marks of two candidates $\mathrm{P}$ and $\mathrm{Q}$ are in the ratio of $2:5$. If the marks of $\mathrm{P}$ are$120$ then marks of $\mathrm{Q}$ are _____ .