Question

12.
The Allisons are on a cross-country trip traveling with the Jensons. One day they get separated and
the Jensons are 20 miles a head of the Allisons on the same road. If the Jensons average 50 mph
and the Allisons travel at 60 mph, how long will it be before the Allisons catch up with the Jensons? with step by step calculation​

Answer 1

Answer:

One day they get separated and the Jensons are 20 mile ahead of the Allisons on the same road. If the Jensons average 50 mph and the Allisons travel at 60 mph, how long will it be before the Allisons catch up with the Jensons? = 2 hours before the Allisons catch up with the Jensons.

Answer 2

It will take Allisons 2 hrs to catch up with Jensons.

Given:

The Allisons are on a cross-country trip traveling with the Jensons. One day they get separated and the Jensons are 20 miles a head of the Allisons on the same road. If the Jensons average 50 mph and the Allisons travel at 60 mph.

To find:

How long will it be before the Allisons catch up with the Jensons?

Solution:

For solving this question, we have to find the relative speed of Allisons and Jensons

They both are travelling in same direction, so relative speed is the difference of their speeds.

Relative speed = 60mph - 50 mph

= 10 mph

Now, we also have the distance of 20 miles and have to find the time.

Time = Distance / speed

= 20/10

= 2 hrs

Hence, the answer is10 hrs.

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