Step-by-step explanation:
The first four common multiples of 5 are...
5, 10, 15, 20, 25, 30, 30, 40, 45, 50
The first four common multiples of 8 are...
8, 16, 24, 32, 40, 48, 56, 64, 72, 80
Answer: 5, 10, 15, 20, 25
8, 16, 24, 32
Answer:
looks like D...............
5/20=x/36
1/4=x/36
x=9
9 minutes.