Walking at a speed of 4km/hr ram reaches the school 12 min late.if he walks at a speed of 5km/hr,he reaches at the correct time.find the dist of the school
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4 km per hr .. 12 min
so 1 km. .. 12 by 4 .. 3 min
5 km .. 3*5 -15min
so 1 km. .. 12 by 4 .. 3 min
5 km .. 3*5 -15min
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