A man had to travel a distance of 90 km to reach his destination. He travels by bus for 2.5 hours at a speed of 34 km/hr and covers the rem… — Answer & Discussion

A man had to travel a distance of 90 km to reach his destination. He travels by bus for 2.5 hours at a speed of 34 km/hr and covers the remaining distance on foot. If he reached his destination in 3 hours, at what speed did he travelled by foot?

A5 km/hr
B6 km/hr
C8 km/hr
D10 km/hr

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Discussion 1

CCommunity27 Jun 2019

Let the speed he travelled by foot be ‘x’ km/hr

As we know,

⇒ Distance = Speed × Time

∴ Total distance travelled = Distance travelled by bus + Distance travelled by foot

⇒ 90 = 34 × 2.5 + x × (3 – 2.5)

⇒ 90 = 85 + 0.5x

⇒ x = 5/0.5

⇒ x = 10 km/hr

Hence, he travelled by foot at a speed of 10 km/hr