Question
Download Solution PDFA car travels from A to B at 44 km/hr and returns from B to A at 66 km/hr. Find its average speed during the whole journey.
Answer (Detailed Solution Below)
Detailed Solution
Download Solution PDFGiven:
Car travels from A to B at 44 km/hr
Car travels from B to A at 66 km/hr
Concept:
Formula used:
Calculation:
Let the total distance between A and B be D km.
Time taken by Car from A to B =
Time taken by Car from B to A =
The total time taken by car to complete the round =
The total distance A to B and B to A = 2D
The average speed =
⇒
∴ The required result will be 52.78 km/hr.
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