Gerry and Alain run around a running track To run around the track once
a) Gerry always takes 90 seconds
b) Alain always takes 105 seconds
They start together at the same point
After how many minutes are they next together at that point?

When Gerry taking 90 seconds and Alain taking105 seconds together at the same point they together meet at the starting point after 630 seconds

7.25

step-by-step explanation:

we know that 7 equals to 7.0. we also know that 1/4=0.25. so we can add the two together and we get 7.25