Question
Download Solution PDFA bus travelling at 72 km/h completes a journey in 15 hours. At what speed will it have to cover the same distance in 12 hours?
Answer (Detailed Solution Below)
Detailed Solution
Download Solution PDFGiven:
Initial speed (S1) = 72 km/h
Time taken (T1) = 15 hours
Time required (T2) = 12 hours
Formula used:
S2 = (S1 × T1) / T2
Where,
S2 = New speed, S1 = Initial speed
T1 = Initial time, T2 = New time
Calculation:
S2 = (72 × 15) / 12
⇒ S2 = 1080 / 12
⇒ S2 = 90 km/h
∴ The correct answer is option (2).
Last updated on Jul 16, 2025
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