Arnold's entire workout consisted of 10 minutes of worm-up exercises, 25 minuets of lifting weights, and 15 minuets on the. treadmill. What was the ratio of the number of minutes he lifted weights to the total of minutes of his entire workout?

A: 1:1

B: 1:2

C: 3:10

D: 5:8

It is c cause the whole workout was 50 minutes and he spent 15 minutes lifting and 15 divided by 5=3 and 50 divided by 5=10

We are looking for the ratio of the number of minutes he lifted weights to the total number of minutes of his entire workout.

We read that he lifted weights for 25 minutes.

Now we need to total time of his workout.

Total time = warm up time + lifting weights time + treadmill time

Total time = 10 mn + 25 mn + 15 mn = 50 mn

Now we know he lifts weights for 25 minutes, and has a total workout time of 50 minutes.

The ratio of the time of lifting weights to the total time is

25:50

We divide both sides by 25 to reduce the ratio to

1:2

Answer is B: 1:2