Question

A car travels a distance d on a straight road in two hours and then return to starting point in next three hours. its average speed is

Answer 1

@ Hii friend....
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Your answer is here:------

Average speed = Total distance/total time
So, Total distance will be = d + d = 2d
Total time will be = 2 + 3 = 5hours
Then,
$ave.speed \: = 2d \div 5$

Hope it will help you!
Thanks!
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Answer 2

Answer:

The average speed is $\dfrac{2d}{5}$

Explanation:

Given that,

Distance = d

Time t = 2 hours

Time t'=3 hours

A car travels a distance d on a straight road in 2 hours and then return to straight point in next 3 hours.

So, The total distance = 2d

and total time T = 5

The average speed is equal to the total distance divided by the total time.

$v_{avg}=\dfrac{D}{T}$

Where, D = total distance

T = total time

Put the value into the formula

$v_{avg}=\dfrac{2d}{5}$

Hence, The average speed is $\dfrac{2d}{5}$