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A car covers 650 kmps in 12 hours and the other 850 kms in 18 hours. Find the average sped of the car ?
Answer & Solution
Correct Answer:
Option
B
$$\eqalign{
& {\text{Average speed}} \cr
& = \frac{{{\text{Total distance }}}}{{{\text{Total time}}}} \cr
& = \left( {\frac{{650 + 850}}{{12 + 18}}} \right)\,{\text{kmph}} \cr
& = \left( {\frac{{1500}}{{30}}} \right)\,{\text{kmph}} \cr
& \therefore {\text{Average speed}} = 50{\text{ kmph}} \cr} $$
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