Question

A man travels 80km in three hours. He further travels for two more hours. Find the distance travelled in the latter two hours , If his average speed for the entire journey is 30km/hr.

• A. 150 km
• B. 70 km
• C. 120 km
• D. 90 km

Answer 1

Answer:

B. 70 km

In 3 hrs he cover 80 km

Average Speed = 30 km/hr

Average speed $= \frac{80+x}{3+2}=30$

$=\frac{80+x}{5}=30\times{5}$

$80+x=150$

$x=150-80$

$x=70 km$