Select the correct answerA car runs at the speed of 50 kmph when not serviced and run at 60 kmph when serviced. After servicing the car covers a certain distance in 6 hours. How much time will the car take to cover the same distance when not serviced?Options6 hours 15 minutes8 hours 12 minutes8 hours 15 minutes7 hours 12minutes
Question
Select the correct answerA car runs at the speed of 50 kmph when not serviced and run at 60 kmph when serviced. After servicing the car covers a certain distance in 6 hours. How much time will the car take to cover the same distance when not serviced?Options6 hours 15 minutes8 hours 12 minutes8 hours 15 minutes7 hours 12minutes
Solution
The first step is to find the distance covered by the car when it is serviced. We know that speed = distance/time. Therefore, distance = speed * time. When the car is serviced, it runs at 60 kmph and covers the distance in 6 hours. So, the distance = 60 kmph * 6 hours = 360 km.
The next step is to find out how long the car takes to cover the same distance when it is not serviced. We know the car runs at 50 kmph when not serviced. So, time = distance/speed. Therefore, time = 360 km / 50 kmph = 7.2 hours.
To convert 0.2 hours into minutes, we multiply by 60 (since 1 hour = 60 minutes). So, 0.2 hours = 0.2 * 60 = 12 minutes.
Therefore, the car will take 7 hours 12 minutes to cover the same distance when not serviced. So, the correct answer is "7 hours 12 minutes".
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