Question
a car covers a distance of 528 km. in a certain time at a speed of 66 km/hr. How much distance would a truck cover at an average speed which 24 km/hr less than that of the speed of the car in time which is 7 hours more than that taken by the car?
Answer: Option D
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Time taken by car = 528/66 = 8 hours
Case II,
Time = 15 hours
Speed = 66 - 24 = 42 kmph
Distance covered by truck =Speed * Time
= 15 * 42 = 630 km
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