Question

John's weekly salary is $800. His brother Josh earns $640 per week. By what percent is John's salary is bigger than Josh's salary?

Answer 1

To find this, we represent p as the unknown percentage:
640p = 800
p = 800/640
p = 100/80
p = 10/8
p = 5/4
Multiply both sides by 25:
125/100
125 - 100 = 25
Josh's salary is 25% larger

Answer 2

Answer: John's salary is bigger than Josh's salary by 25%.

Step-by-step explanation: Given that John's weekly salary is $800 and his brother Josh earns $640 per week.

We are to find the percentage by which John's salary is bigger than Josh's salary.

The difference in the weekly salaries of John and Josh is given by

`\$(800-640)=\$160.`

Therefore, the required percentage by which John's salary is bigger than Josh's salary is given by

`P=\frac{\textup{difference in the salaries}}{\textup{Josh's salary}}* 100\%=(160)/(640)*100\%=(1)/(4)*100\%=25\%.`

Thus, John's salary is bigger than Josh's salary by 25%.