Aptitude:speed and distance [Section 1 of 1] Q22 of 30 Marks 1 General Instructions 100% ×CloseTest time left: 07:53Select the correct answerA part of the Journey is covered in 31.5 minutes at 80 km/h and the remaining part in 16 minutes at 75 km/h. The total distance of the journey is?
Question
Aptitude:speed and distance [Section 1 of 1] Q22 of 30 Marks 1 General Instructions 100% ×CloseTest time left: 07:53Select the correct answerA part of the Journey is covered in 31.5 minutes at 80 km/h and the remaining part in 16 minutes at 75 km/h. The total distance of the journey is?
Solution
To solve this problem, we need to convert the speed from km/h to km/min because the time is given in minutes. Then, we multiply the speed by the time to get the distance for each part of the journey. Finally, we add up these distances to get the total distance.
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Convert the speed from km/h to km/min: Speed1 = 80 km/h = 80/60 km/min = 1.33 km/min Speed2 = 75 km/h = 75/60 km/min = 1.25 km/min
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Calculate the distance for each part of the journey: Distance1 = Speed1 * Time1 = 1.33 km/min * 31.5 min = 41.895 km Distance2 = Speed2 * Time2 = 1.25 km/min * 16 min = 20 km
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Add up these distances to get the total distance: Total distance = Distance1 + Distance2 = 41.895 km + 20 km = 61.895 km
So, the total distance of the journey is approximately 61.9 km.
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