S Purkayastha Solutions for Chapter: Revision Exercise – 2, Exercise 11: Revision Exercise - 2

Solve $x-(2x+5)-5(1-2x)=2(3+4x)-3(x-4)$

The numerator of a fraction is $1$ less then its denominator. If the numerator is increased by $4$ and the denominator is increased by $5$, the new fraction becomes $\frac{4}{5}$. What is the original fraction?

Two equal sides of an isosceles triangle are each $2 \mathrm{cm}$ more than thrice the third side. If the perimeter of the triangle is $74 \mathrm{cm}$, find the lengths of its sides.

$₹720$ is divided between Ram and Rahim in the ratio $4:5$. How much rupees will each get?

Two numbers are in the ratio $2:3$. If $5$ is added to each number, the ratio becomes $5:7$. Find the numbers.

From the numbers $4, 10, 15$ and $6$, form a proportion.

$37\frac{1}{2}\%$ of a number is $150$. Find the number.

Karim purchased $12$ dozen eggs for $₹24.50$ a dozen. $10$ eggs were rotten. He sold the remaining eggs at $₹2.50$ each. Find his profit or loss percent.