Question

The speed of a vehicle and the distance covers vary *

A) directly to each other
B) inversely to each other
C) neither direct nor inverse​

Answer 1

Answer:

Time(t)∝

Speed(s)

1

t=

s

k

∴ts=k

∴k=40×3=120

Now, t=2 hours

∴120=2×s

∴s=60

The required speed is 60 km/hr.

Answer 2

Answer:

c................?............