GMAT Quantitative Reasoning Practice Test 2

Question : 99 of 100

Marks: +1, -0

The number 12 bus is working from 6:00 in the morning to 10:00 P.M on weekdays only. On Saturdays and Sundays the bus goes to the garage 3 times a day for upgrading, each time for 3 hours. For what fraction part of the entire week is the bus on the road?

$5 \/ 12$
$4 \/ 7$
$7 \/ 9$
$6 \/ 11$
$7 \/ 12$

Validate

Solution:

In one week there are

24 \times 7=168

hours.
The bus is on the road everyday, on weekdays he is 16 hours on the road and on Saturdays and Sundays he drives for 9 hours each day. The total amount of hours is

16 × 5 + 18 = 98

. The fraction part of the week is

98/168 = 7/12.

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