Question

Dean has two eletric train sets A and B.each train is on its own circular track he starts both trains at the same time train a returns to its start point every 12 seconds train b returns every 9 seconds what is the least amount of time in seconds both trains will arive at the same time

Answer 1

I believe what the person above said is correct, im just getting points!

Answer 2

36

Explanation:

you have to find the LCM of 12 and 9 which is 36. :/