Therefore, downstream speed of the boat = 625/12.5 = 50 km/hr And, upstream speed of the boat = 6 km/hr Required time taken = (340/50) + (45/6) = 6.8 + 7.5 = 14.3 hours
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Find both the maximum value and the minimum value respectively of 3a4 minus; 8a3 + 12a2 minus; 48a + 25 on the interval...
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