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.
o
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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
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