With the speed of 40 km a distance is covered in 48 minutes. If the speed is increased by 20 km/hour the time taken is
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time taken is 32 minutes
according to my knowledge and
the given data the s1= 40km/hr and s2=40+20=60. t1 = 48 min and t2 =?
the formula is s1/s2 =t2/t1 because speed is inversely proportional to time . here the distance is constant.
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