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Let the speed of stream be '2x' km/hr. So, speed of boat in still water = 1.5 X 2x = '3x' km/hr So, upstream speed of the boat = 3x - 2x = 'x' km/hr And downstream speed of the boat = 3x + 2x = '5x' km/hr ATQ, (135/5x) + (135/x) = 54 Or, (27/x) + (135/x) = 54 Or, (162/x) = 54 So, 'x' = (162/54) = 3 Speed of boat in still water = '3x' = 3 X 3 = 9 km/hr Therefore, required time = (180/9) = 20 hours
Who among the following has been appointed as MD and CEO of Indian Overseas Bank?
Which statements correctly describe the features of the SBI MSME Sahaj loan facility?
1. The loan process from application to disbursement is les...
India’ s first slender loris sanctuary has been notified by which state?