Asit Das Gupta and Alok Kumar Solutions for Exercise 4: Revision Exercise

Divide $₹1760$ between Raj and Aryan in the ratio $37:51$.

In the proportion, the second, third and fourth terms are $96,105$ and $120$ respectively. Find the first term.

The ratio of the number of boys in the school to the number of girls is $4:5$. If the number of girls is $545$, find the total number of students in the school.

Find the compound ratio of $250 \mathrm{ml}: 1.450 \mathrm{L}$ and $7 \mathrm{h} 15 \min :12 \mathrm{h}$

A lawn tennis club charge a boy $₹7512$ for three months. What are the charge for, $11$ months?

The cost of $7$ notebooks is $₹406$ and the cost of $9$ pens is $₹$$162$. Find the cost of $13$ notebooks and $17$ pens. 

A car covers the distance between the two places $\mathrm{A}$ and $\mathrm{B}$ in $1 \mathrm{hour} 45 \mathrm{minutes}$. If the speed of the car is $96 \mathrm{km}/\mathrm{h}$, find the distance between the places $\mathrm{A}$ and $\mathrm{B}$.

The distance between two place is $130 \mathrm{km}$. A car travelling at a certain speed can cover the distance in $1 \mathrm{hour} 15 \mathrm{minutes}$. By how many $\mathrm{km}/\mathrm{h}$ should the speed of the car be increased for it, to take $10 \mathrm{minutes}$ less to cover the distance ?