Percentage

high importance~2 Q in Tier 121 formulas⚡ 15 shortcuts5 subtopics

Exam-level questions worked step by step. Try each one yourself first — then expand the solution and compare routes.

Q1.

A number is first increased by 20% and then decreased by 10%. What is the net percentage change?

Q2.

Find the value of $16\frac{2}{3}\%$ of 720 $+$ $33\frac{1}{3}\%$ of 450.

Q3.

The price of an article is first increased by 10% and then decreased by 10%. What is the net change in price?

Q4.

A's salary is 25% more than B's salary. B's salary is what per cent less than A's salary?

Q5.

The value of a machine depreciates at the rate of 10% per annum. If its present value is ₹8,100, what was its value 2 years ago?