Subject
Quantitative Aptitude
Topic
Speed & Distance
A motorboat in still water travels at a speed of 36 km/h. It goes 56 km upstream in 1 hour 45 minutes. The time taken by it to cover the same distance down the stream will be:
A motorboat in still water travels at a speed of 36 km/h. It goes 56 km upstream in 1 hour 45 minutes. The time taken by it to cover the same distance down the stream will be:
ক)
2 hours 25 minutesখ)
3 hoursগ)
1 hour 24 minutesঘ)
2 hours 21 minutesঙ)
1 hour 40 minutesExplanation
Given: speed of motor boat in still water = 36 km/hr Let the time taken to cover same distance down the stream = x hr Speed of boat upstream = Man’s rate in still water = (rate in upstream + rate in downstream)/2 ⇒ x = (56/40) ⇒ x = (14/10) hrs = 1 hr 24 minsRelated questions
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