Question

You and your sister share a car with your mom. You get to use the car every fourth day. Your sister gets the car every fifth day. You both use the car today. In how many days will you both get the car again on the same day?

Answer 1

Answer:

20th day

Step-by-step explanation:

you: 4,8,12,16,20,24

sister:5,10,15,20,25

20 is the day where they meet

Answer 2

Answer:

20th Day

Step-by-step explanation:

When trying to find out what day you and your sister will both be in the car, you need to take into consideration when both numbers will line up.

4, 8, 12, 16, 20, 24, 28, 32

5, 10, 15, 20, 25, 30, 35

Therefor you get 20th day