A car moving at a speed of 75 km/hr covers certain distance in 2 hours. If its speed is reduced by 15 km/hr, in what time it will cover the same distance?A)140minB)150minC)170minD)175min
Question
A car moving at a speed of 75 km/hr covers certain distance in 2 hours. If its speed is reduced by 15 km/hr, in what time it will cover the same distance?A)140minB)150minC)170minD)175min
Solution
First, let's find out the distance covered by the car moving at a speed of 75 km/hr in 2 hours.
Distance = Speed x Time Distance = 75 km/hr x 2 hr = 150 km
Now, if the speed of the car is reduced by 15 km/hr, the new speed of the car is 75 km/hr - 15 km/hr = 60 km/hr.
To find out the time it will take to cover the same distance at the reduced speed, we can use the formula:
Time = Distance / Speed Time = 150 km / 60 km/hr = 2.5 hours
Since 1 hour is 60 minutes, 2.5 hours is 2.5 x 60 = 150 minutes.
So, the answer is B) 150 minutes.
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