swerve wrote: ↑

Wed Feb 26, 2020 10:26 am

Laura and Jeff plan to drive along the same route to the same destination. If it will take one hour for Jeff to travel the route, and Laura travels at a rate that is 50% faster than Jeff's rate, how long will it take Laura?

A. 30 minutes
B. 35 minutes
C. 40 minutes
D. 45 minutes
E. 50 minutes

The OA is C

Source: Veritas Prep

Say the speed of Jeff is 60 mph; thus, he runs 60 miles in 1 hour. Since Laura's speed is 50% more, her speed would be 90 mph. Thus, she would take 60/90 = 2/3 hours = 2/3*60 = 40 minutes.

The correct answer: C

Hope this helps!

-Jay
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swerve wrote: ↑

Wed Feb 26, 2020 10:26 am

Laura and Jeff plan to drive along the same route to the same destination. If it will take one hour for Jeff to travel the route, and Laura travels at a rate that is 50% faster than Jeff's rate, how long will it take Laura?

A. 30 minutes
B. 35 minutes
C. 40 minutes
D. 45 minutes
E. 50 minutes

The OA is C

Source: Veritas Prep

Since Laura’s rate is 50% faster, or 3/2 of Joe’s rate, her time is 2/3 of Joe’s time. If it takes Joe 1 hour, it takes Laura 2/3 of an hour, or 40 minutes.

Answer: C