Editorial Board Solutions for Chapter: Arithmetic Maths, Exercise 1: PERCENTAGES

The salary of a worker was first raised by $10\%$, and then the same was reduced by $5\%$. If he presently draws $₹1045$. What was his original salary?

The tax on a commodity is diminished by $20\%$ and its consumption increases by $15\%$. The effect on revenue is:

A candidate got $35\%$ of the votes polled and he lost to his rival by $2250$ votes. How many votes were cast?

The price of gold increases by $50\%$. Find by how much the quantity of ornaments must be reduced so that the expenditure may remain the same as before?

Subtracting $10$% from $X$ is the same as multiplying $X$ by what percent?

If the numerator of a fraction is increased by $20\%$ and its denominator is diminished by $25\%$, the value of the fraction is $\frac{2}{15}$. Find the original fraction.

An engineering student has to secure $36\%$ marks to pass. He gets $130$ marks and fails by $14$ marks. The maximum number of marks in the exam is :

A and B’s salaries together amount to $Rs. 2000$. A spends $95\%$ of his salary and B spends $85\%$ of his salary. Now, if their savings are the same, what is A’s salary?