GMAT Quantitative Reasoning Practice Test 3

Question : 79 of 100

Marks: +1, -0

Two cars are traveling towards each other. If car

{\A}

is traveling at a speed of

50 {\mph}

and car

{\B}

is traveling

12 \%

slower, how much time will it take the cars to meet if the initial distance between the two is 705 miles?

Solution:

Car B is traveling at a speed of

0.82 × 50=44 {\mph}

.
The cars are traveling in opposite directions. Thus, the distance should be divided by the sum of their speeds

=50+44=94 {\mph}

. 705 miles

\/ 94=7.5=

seven hours and 30 minutes.

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