Question
With a uniform speed a car covers the distance in 8 hours. Had the speed been increased by 4 km/hr, the same distance could have been covered in `7 1/2` hours. What is the distance covered ?
Answer: Option B
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Let the distance be `x` km. Then ,
`(x)/(7 1/2) - (x)/(8) = 4 hArr (2x)/(15) - (x)/(8) = 4 hArr x `= 480 km.
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