A man walking at a speed of 8 km/hr covers a certain distance in 1 hour 45 minutes. If he runs at a speed of 10 km/hr, in what time he will cover the same distance?
Answer & explanation
Correct answer: option 1
Distance covered with 8km/hr speed: speed x time i.e. 8 x 1 \(\frac{ 45}{60 }\)
8 x 1 \(\frac{ 3}{4 }\)
8 x \(\frac{ 7}{4 }\) = 14km
Time for covering the same distance by running 10km/hr
Time = \(\frac{ Distance}{ Speed}\)
Time = \(\frac{ 14}{ 10}\) = 1.4 hour
1 hour (60 min) + \(\frac{4 }{ 10}\) x 60 minutes = 84 minutes