Question
Download Solution PDFA flight covers a distance between A and B in 31 hours. If the speed of the flight is reduced by 320 km/hr, then the same distance is covered in 36 hours. Find the distance between A and B. (in km)
Answer (Detailed Solution Below)
Detailed Solution
Download Solution PDFGiven:
1st condition,
Time1 = 31 hr
2nd condition,
Time2 = 36 hr
Speed2 = (s1 - 320) km/h
Formula used:
Distance = Speed × Time
Calculation:
s1 × t1 = s2 × t2
⇒ s1 × 31 = (s1 - 320) × 36
⇒ s1 × 31 = 36s1 - 11,520
⇒ 5s1 = 11,520
⇒ s1 = 2304 km/h
Distance = s1 × t1
⇒ 2304 × 31 = 71424
The distance between A and B is 71424 km
∴ The correct answer is option (4).
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