Question

During last year Adam's height increased from 125 cm to 135 cm. By how many percents did it change?

Answer 1

he increase from 125cm to 135cm

first step :

$135 - 125 = 10cm$

second step :

percents he change is

$\frac{10 \times 100\%}{ 125} = 8\%$

Answer 2

Answer:

        = 8% increase

Step-by-step explanation:

The percent change is given by

percent change = (new - old)/old *100 %

                            = (135-125)/125 * 100%

                              =10/125 *100%

                              =.08 * 100%

                              = 8% increase