Question

Some students washed 24 cars in 2 hours. how many cars can they wash in 15 hours?
a. 12
b. 48
c. 180
d. 360

Answer 1

itd be c.180 because itd be 12 cars each hour so times 12 by 15

Answer 2

Answer:

option c is correct

180 cars can they wash in 15 hours

Step-by-step explanation:

Unit rate defined as the rate are expressed as a quantity 1 such as 4 miles per hour or 5 meter per second.

As per the statement:

Some students washed 24 cars in 2 hours

Then by definition of unit rate.

$\text{unit rate per hour}=\frac{24}{2} = 12$

We have to find how many cars can they wash in 15 hours

⇒$\text{Number of cars washed in 15 hours} = \text{Unit rate per hour} \cdot 15$

Substitute the given values we have;

$\text{Number of cars washed in 15 hours} = 12 \cdot 15$

Simplify:

$\text{Number of cars washed in 15 hours} = 180$

Therefore, 180 cars can they wash in 15 hours