Question

while driving car at 50kmper hr ramit covets distance from his home to his office in 90 minutes. one day he was 15 minutes late from his home.in order to reach office at time what should be speed of car

Answer 1

Speed = 50 km per hr
Time = 90 minutes or 3/2 hrs
Distance = 50 × 3/2
Distance = 75 km

In second case,
Distance = 75 km
Time = (90-15) mins
= 75 mins
= 5/4 hrs

Speed = Distance / Time
= 75 / (5/4)
= 75×4 / 5
= 15×4
= 60 km per hr


ANSWER = 60 km/hr

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