Question

The school hiking club had a car wash on Saturday and Sunday. The students washed 30% of the cars on Saturday. If they washed 24 cars on Saturday, how many cars did they wash on both days?

Group of answer choices

A) 24

B) 30

C) 72

D) 80

Answer 1

Answer:

they washed 80 cards in both days Saturday and Sunday

Answer 2

Answer:

D) 80

Step-by-step explanation:

Let the number of cars washed on both days be $x$.

Given:

Cars washed on Saturday is 30% of total cars washed.

So, cars washed on Saturday, $n=30\%\textrm{ of } x=\frac{30}{100}x$

But, cars washed on Saturday is given as 24.

Therefore,

$n=24\\\frac{30}{100}x=24\\30x=24\times 100\\x=\frac{2400}{30}=80$

Hence, 80 cars were washed on both days.