Question

A car travels 90 km in 2½ hours.
(a) How much time is required to cover 30 km with the same speed?
(b) Find the distance covered in 2 hours with the same speed.

Answer 1

Step-by-step explanation:

d=90

t=2.5

s=?

s=d/t

=90/2.5

=36

a) d=30 ; s=36 t=?

s=d/t

t=d/s

=30/36

=0.83 hr

b) t=2 s=36 d=?

d=s×t

36×2

d=72km