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Do as directed Ashok starts from Roork...

Do as directed
Ashok starts from Roorki at 5 : 00 a.m. If the speed of his car is V km/hr and he observe that at 12:00 noon he is just 30 km from Delhi. Find the distance between Delhi and Roorki. Why should we use seat belt during driving?

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The correct Answer is:
`7V+30`
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