Question

A number is increased by 10% and the
resulting number is again increased by 20%.
What is the overall percentage increase in the
number?​

Answer 1

Answer:

32%

Step-by-step explanation:

Take whole value to be x.

First result=110% of x.

Second result=120% of 110% of x=$\frac{120*110}{100*100}* \frac{x}{100}$=132% of x.

Net percentage increase=132-100% of x=32%.

Answer 2

Answer:

Step-by-step explanation:

if x is increased by 10%, the result is (1.1 × x). if (1.1 × x) in its turn is increased by 20%, then it becomes (1.2 × 1.1 × x) = 1.32 × x.

the overall percentage increase in the number would be 32.