Question

A car travels from place A to the place B at

20 km/hour and returns at 30 km/hour. The

average speed of the car for the whole journey

is –​

Answer 1

Step-by-step explanation:

average speed of car - v+u/2

20+30/2

=50/2

=25 km/ hr

Answer 2

hlw

my dear u want a bottle of beer

i m just kidding dr

your answer is 24 km / hr

this question we do as a short trick

$2xy \div x + y \\ x \: and \: y \: are \: differnt \: speed$

$in \: thi \:s \: question \: x \: is \: 20 \\ and \: y \: is \: 30 \\ \\ \\ \\ \\ \\ then \: put \: in \: the \: \: above \: formula \\ \\ \\ \\ 2 \times 30 \times 20 \div (20 + 30 ) = 24$

i hope that it helps you my dear frnd

:) stay at home stay safe and stay happy :)