Question

A car travels 90 km in 2 2 1 hours.

a.how much time is required to cover 30km with the same speed

b.find the distance covered in 2 hours with the same speed.

Answer 1

90 km = 221 hr.
1 km =
$\frac{90}{221} \\ = 0.4 \: hr \: \: \: approx$
for 30 km = 30×0.4