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I. 63x² + 37 x – 40 = 0 63x² - 35 x + 72 x – 40 = 0 7 x(9 x – 5) + 8(9 x – 5) = 0 (7 x + 8) (9 x – 5) = 0 x = 5/9, -8/7 II. 15 y² + 29 y + 12 = 0 15 y² + 20 y+ 9 y + 12 = 0 5 y(3 y + 4) + 3(3 y + 4) = 0 (5 y + 3) (3 y + 4) = 0 y = -3/5, -4/3 Hence, relationship cannot be established between x and y
A man rows to a place 42 km away and comes back to the starting point. If the speed of the stream is 2 km/hr and the speed of the boat in still water is...
The distance covered by a boat while moving in downstream in a fixed time is 3/4 more than in upstream. The speed of stream is what % of the still water...
Speed of boat in downstream is 45% more than speed of boat in still water. If speed of stream is 9 km/h, then find the time taken by the boat to cover 8...
A boat can travel 50 km upstream in 5 hours and 60 km downstream in 4 hours. Find the speed of the boat in still water.
The downstream speed of a boat is 6 km/hr more than its upstream speed and the ratio of the speed of the boat in still water to the speed of the stream ...
A boy can swim in water with a speed of 12 km/hr in still water. If the speed of the stream is 5 km/hr, what will be the time taken by the boy to cover ...
Two boats A and B start towards each other from two places, 600 km apart. Speed of the boat A and B in still water are 23 km/h and 17 km/h respectively....
A boat takes 7 hours to cover 266 km upstream and 9 hours to cover 468 km downstream. Find the time taken by the boat to cover 528 km upstream and 540 k...
The downstream speed of a boat is 4 km/hr more than its upstream speed and the ratio of the speed of the boat in still water to the speed of the stream ...
A boat covers 35 km downstream in 2 h and covers the same distance upstream in 7 h. Find the speed (in km/h) of the boat in still water.