Question

How many liters are in 21 cups? if 1L=4.2cups
i don't understand how to do it

Answer 1

5 liters, because if you use divide 21 cups by 4.2 cups (1 liter), you will come out to 5 liters

Answer 2

5 L

Explanation:

As given in question,

1 L can fill 4.2 cups.

So, 1 cup can hold
`(1)/(4.2)` L of fluid.

Therefore,

21 cups can hold =
`(1)/(4.2)` × 21

= 5 L

So, there is 5 L of fluid in 21 cups.