Math, asked by gouthamgamerz1, 5 hours ago

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Answered by Itzdarkshadow56
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Let speed of the boat in still water = x km/hr, and  Speed of the current = y km/hr  Downstream speed = (x + y) km/hr  Upstream speed = (x − y) km/hr Let  1 x + y 1x+y = u and  1 x − y 1x−y = v Put in the above equation we get,  24u + 16v = 6  Or, 12u + 8v = 3 ... (3)  36u + 12v = 6  Or, 6u + 2v = 1 ... (4)  Multiplying (4) by 4, we get,  24u + 8v = 4v … (5)  Subtracting (3) by (5), we get,  12u = 1  ⇒ u = 1 12 112 Putting the value of u in (4), we get, v = 1 4 14  ⇒ 1 x + y 1x+y = 1 12 112 and 1 x − y 1x−y = 1 4 14 ⇒ x + y = 12 and x − y = 4  Thus, speed of the boat in still water = 8 km/hr,  Speed of the current = 4 km/hrRead more on Sarthaks.com - https://www.sarthaks.com/972083/motorboat-covers-distance-16km-upstream-24km-downstream-hours-covers-distance-upstream

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Answered by anshul267
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