Question

As a club fundraiser, a group of students washed 40 cars one weekend. The next weekend, they washed 70 cars. What was the percent increase in the number of cars washed?

Answer 1

Answer:

Percent Increase = 75 %

Step-by-step explanation:

Given:

Total cars washed on first week = 40

Total cars washed on second week = 70

To Find :

Percent increase = ?

Solution :

First we will find the increase in the number of cars washed

So increase in no of cars washed = 70 - 40

                                                        = 30 cars

The formula for percent increase is

percent increase $=\frac{increase-in-no-of-cars}{cars washed last week}*100$%

Putting in the values gives us

Percent increase $=\frac{30}{40}*100$%

Percent increase $=\frac{30*100}{40}$%

Solving it gives

Percent Increase = 75 %