Shahid starts from Gujarat at 10 a.m. to Delhi. If his car is running at the speed of x km per hour and at 3 p.m. he observes that he is 20 km away from Delhi. Find the distance between Gujarat and Delhi 

We have,speed of the car = x km/hNow, distance covered by the car between 10 a.m. and 3 p.m. or ditance covered in 5 hrs = speed × time=x × 5=5x kmRemaining distance to be covered = 20 kmNow, distance between Gujarat and Delhi = 5x + 20 km

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100 km maybe
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sorry 120 km
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120 km
 
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it is x km has left
 
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