Two friends left school at the same time and drove in opposite directions. One friend averages 40 miles per hour and the other f
riend averages 35 miles per hour. When will they be 150 miles apart?
1 answer:
The two friends will be 150 miles apart, when the sum of the distances covered by the them is 150 miles.
distance = speed x time.
Let the time covered when they are 150 miles apart be x, then:
40x + 35x = 150
75x = 150
x = 150/75 = 2.
Therefore, the two friends will be 150 miles apart in 2 hours.
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