Question

Maria plays tennis only on Fridays. She plays basketball every third day. If Maria plays tennis and basketball on Friday, how many days will it be before she plays tennis and basketball again on the same day?

Answer 1

5 days before she plays both sports again.

Answer 2

21 days. Friday

Explanation:

In ordet o solve this, you know that there is a separation of 7 days between friday and friday, and that´s the number for tennis, and there is 3 days between the days she plays basketball, so you ned the minimum common factor which is given by multiplyign 7*3 which would be 21, so after 21 days she will play again basketball and tennis on a friday.