Julia goes running every 4 days and weight lifts every 3 days. How many days until she will run and lift on the same day?

Question

a
4 days
b
3 days
c
7 days
d
12 days

Answer 1

The least common multiple of 3 and 4 is 12. Therefore, Julia will run and lift on the same day every 12 days.

So the correct answer is:

d
12 days