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A student walks from his house at 10 km/hr and reaches his school late by 6 minutes. Next day, he increases his speed by 15 km/hr and reaches 4 minutes before school time. How far is the school from his house?

Option 1)

12 km

Option 2)

9 km

Option 3)

5 km

Option 4)

10 km

Option 5)

8 km

Answers (1)

best_answer

Speeds = 10 : 15 => 2: 3

Here the distance is same,

Time = 3: 2

Difference between the times = 6+4 => 10 minutes

As per the observation,

i unit = 10 minutes

3 units = 30 minutes or 1/2 hour

Distance = 10 x 1/2 => 5 Km

Posted by

rishi.raj

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