Question

7.
Example 15: Acar travels 90 km in 2 hours.
How much time is required to cover 30 km with the same speedo
(b) Find the distance covered in 2 hours with the same speed.
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Answer 1

Answer:

a) time=0.67 hour or 40 min 2 sec

b) distance= 90 km

Step-by-step explanation:

speed=distance/time

=90/2

=45 km/hr

therefore Car is traveling at the speed of 45 km/hr

a) given:Distance, d=30 km

therefore, Time= distance/ speed

=30/45

=0.666 or 0.67 hour

=40 min 2 sec (0.67×60)

b) distance covered=time × speed

=2 ×45

=90 km