Question

a journey by car takes 5 for speed of 20 metre per second how much time will be safe if the speed is increased to 25 metre per second for the same journey​

Answer 1

Answer:

4secs

Step-by-step explanation:

20m/s^2------5

25m/s^2------?

IT IS INDIRECT VARIATION:

20×5=100

100/25

4

Answer 2

Answer:

1 second will be saved

Step-by-step explanation:

1.

distance =speed *time

x=20 *5=100m

x=100m

2.

distance=speed*time

100=25*y

y=100 /25

y=4 second