Sara has swimming lessons every fifth day and driving lessons every third day. If she had a swimming lesson and drving lesson on

Question

3 years ago

5

May 5, when will be the next date on which she has both swimming and driving lesson?
She will have both driving and swimming lessons on May

1 answer:

allochka39001 [22] · Answer 1 · 2022-09-07T23:26:26+03:00

3 0

Find the least common multiple of 3 and 5:

3: 3,6, 9,12,15,18,21

5: 5, 10, 15, 20

The least common multiple is 15. This means every 15 days they will be the same day.

Add 15 days to May 5:

5 + 15 = 20

The next day would be May 20