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Question
A body moves at a speed of 20 km/hr for the first 2 hours then it moves at the speed of 30 km/hr for the next 1 hour. What is the total distance travelled by the body?
A body moves at a speed of 20 km/hr for the first 2 hours then it moves at the speed of 30 km/hr for the next 1 hour. What is the total distance travelled by the body?
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Solution
The correct option is B 70 km
We know that, Distance =Speed×Time
The total distance will be the sum of the distances travelled in both the time intervals.
Hence, total distance =(2×20)+(1×30)=70km
70 km
We know that, Distance =Speed×Time
The total distance will be the sum of the distances travelled in both the time intervals.
Hence, total distance =(2×20)+(1×30)=70km
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