Question

A and b ate starting from two opposite points at same time. after crossing they have taken 4hrs and 9hrs to reach their destination. is b's speed is 20km/hr then find a's speed?

Answer 1

distance travelled by b=speed ×time
=9×20
=180 km
according to the question distance travelled by a and b is equal then
speed of a = distance travelled/time taken
= 180/4
=45km/hr

Answer 2

Hiii...
Here is your answer...

Solution:-
Time taken by B=9hrs
Speed=20km/h
So,
Distance=Speed×time
$= > 20 \times 9 \\ = > 180km$
Since,in this question the total distance covered is equal by both A and B ,but time and speed are different..

As we know that,

Speed =
$= > \frac{distance}{time}$
Similarly,speed of A=
$= > \frac{180}{4} \\ = > 45$
Hence,speed of A is 45km/h

Hope it helps uh...✌️✌️✌️