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A rows a boat 100 km in 20 hours downstream and 72 km in upstream in 18 hours. Find the speed of the boat in still water.
  • a)
    6.5 km/h
  • b)
    4.5 km/h
  • c)
    6 km/h
  • d)
    7 km/h
Correct answer is option 'B'. Can you explain this answer?
Verified Answer
A rows a boat 100 km in 20 hours downstream and 72 km in upstream in 1...
Let speed of boat in still water is SB and speed of stream is Sand Speed of boat in upstream and downstream is SU and SD
Speed of boat in still water S= 1/2 × (SD + SU)
⇒ 1/2 × (100/20 + 72/18)
⇒ 0.5 × (5 + 4)
∴ The speed of boat in still water = 4.5 km/hr
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A rows a boat 100 km in 20 hours downstream and 72 km in upstream in 18 hours. Find the speed of the boat in still water.a)6.5 km/hb)4.5 km/hc)6 km/hd)7 km/hCorrect answer is option 'B'. Can you explain this answer?
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A rows a boat 100 km in 20 hours downstream and 72 km in upstream in 18 hours. Find the speed of the boat in still water.a)6.5 km/hb)4.5 km/hc)6 km/hd)7 km/hCorrect answer is option 'B'. Can you explain this answer? for SSC 2024 is part of SSC preparation. The Question and answers have been prepared according to the SSC exam syllabus. Information about A rows a boat 100 km in 20 hours downstream and 72 km in upstream in 18 hours. Find the speed of the boat in still water.a)6.5 km/hb)4.5 km/hc)6 km/hd)7 km/hCorrect answer is option 'B'. Can you explain this answer? covers all topics & solutions for SSC 2024 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for A rows a boat 100 km in 20 hours downstream and 72 km in upstream in 18 hours. Find the speed of the boat in still water.a)6.5 km/hb)4.5 km/hc)6 km/hd)7 km/hCorrect answer is option 'B'. Can you explain this answer?.
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