Question

Three tour buses leave the visitor's center at 9:00A.M . Bus A returns after every 60minutes , bus B returns after every 40minutes and bus C returns after every 75minutes. what is the next time the buses will return to the visitor's at same time
A) 5:00A.M
B) 6:00A.M
C) 7:00A.M
D) 8:00A.M​

Answer 1

the answer

7:00

I hope it is helpful