Mohan cycles to his school at an average speed of 12 km/hr. It takes him
20 minutes to reach the school. If he wants to reach his school in
15 minutes, what should be his average speed shrawani i love you
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Answer:
16 km/h
Step-by-step explanation:
First Case
Speed = 12 km/h
Time = 20 min. = 1/3 h
Distance = 12 × 1/3 km = 4 km
Second Case
Distance = 4 km
Time = 15 min. = 1/4 h
Speed = 4 ÷ 1/4 km/h = 16 km/h
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Step-by-step explanation:
as they are ininverce proportion the multiplication of 20and12 will equal to multiplication of 15 and x
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