Question

raj covered first 20 km in 30 min and rmaining 29 km in 40 min find average speed in km/ hour?
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Answer 1

Answer:

Raj's average speed is 41.75 km/h

hopes it is correct and helps you..

Answer 2

42 km/hour

Step-by-step explanation:

According to question

Raj covered 1st 20 km in 30 minutes

and another 29 km in 40 minutes

Average speed = $\frac{Total distance}{Total time}$

                           = $\frac{20+29}{30+40}$

                           =$\frac{49}{70}=\frac{7}{10}km/minute\\\frac{7}{10}\times60km/hour\\=42km/hour$