CBSE Class 8 Answered
A motorboat covers a distance upstream in 6 hours and covers the same distance downstream in 5 hours .If 3 km/h is the speed of the water, then find the speed of the boat in still water .
Asked by kulsum626 | 20 May, 2019, 07:18: PM
Let the speed of th motorboat in still water be xkm/hr.
→Speed of the motorboat in downstream = x + 3
→Speed of the motorboat in upstream = x - 3
We know that,
Distance = Time × Speed
Distance is same.
→ 6(x - 3) = 5(x + 3)
→ 6x - 18 = 5x + 15
→ x = 33
Answered by Yasmeen Khan | 21 May, 2019, 10:04: AM
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