.A car travels with a speed of 30 km/ hour for 30 minutes and then with a speed of 40 km/hour for 1 hour. Find the total distance travelled by the car
a. 49
b.55
c.59
d.none of these
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Speed distance travelled / time of motion
Therefore,
distance travelled = speed x time of motion
PRICING
In 30 minutes i.e 0.5 Hr, the car travelling with the speed of 30
Km/Hr will cover
= 30 x 0.5 = 15 Km distance
If the same car travells with the speed of 40 Km/Hr for 1 hour,
the car will cover
= 40 x 1 = 40 Km
Therefore, the total distance travelled by the given car is 15 Km O
+ 30 Km = 45 Km
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