Time and Distance Practice Test 2 with solutions

Question : 6 of 40

Marks: +1, -0

A person covers a distance of 280 km in 7 hours. In order to complete the same distance in 5 hours 36 minutes, the speed must be increased by what percent?

20%
25%
$22 2/{11}$ %
23 %
$24 1/2$ %

Validate

Solution:

Original speed =

{280}/7

= 40 km/hour
New speed =

{280}/{{5+36}/{60}}

{280}/{5.6}

= 50 km/hours
Percentage increase =

{10}/{40} × 100

= 25 %

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