Question

c) A truck travels 40 km in the first hour, 45 km in the second hour and 35 km in the third hour. Calculate the average speed of the vehicle.

Answer 1

Answer:

In 1 hour 45 ......

45 +40+35 / 3

120/3

= 40 is the average speed

Answer 2

★Given:

truck travels 40 km for 1st hour

45 km for second hour

35 km for third hour.

★To find:

Average speed of the vehicle

★Solution:

We know that,

${\pink{\boxed{Average\:speed = \frac{Total\: distance\:travelled}{Total\:time\:taken} }}}$

$\sf by\: putting\:the\:values\\ \\ \\ \frac{40km + 45 km + 35km}{1+1+1}\\ \\ \\ = \frac{\cancel{120}}{\cancel{3}} \\ \\ \\ {\boxed{\therefore \:Average\:speed = 40 km/h}}$