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Start learning 50% faster. Sign in nowx2 + 31x + 228 = 0 x2 + 19x + 12x + 228 = 0 x(x + 19) + 12(x + 19) = 0 (x + 12)(x + 19) = 0 x = -12, -19 y2 + 3y – 108 = 0 y2 + 12y – 9y – 108 = 0 y(y + 12) – 9(y + 12) = 0 (y – 9)(y + 12) = 0 y = 9, -12 x ≤ y
The speed of a boat in still water is 32km/hr and the speed of the current is 8km/hr. It takes a total of 15hours to row to upstream from Point A to B a...
A boat takes 7 hours to cover 259 km upstream and 9 hours to cover 477 km downstream. Find the time taken by the boat to cover 602 km upstream and 605 k...
Boat ‘A’ can cover 160 km in still water in 8 hours. In still water, if the ratio of the speed of boat ‘A’ to that of ‘B’ is 4:3 and the spe...
The ratio of the speed of boat ‘A’ in still water, the speed of boat ‘B’ in still water and the speed of the current is 7:5:2, respectively. If ...
The speed of a boat in still water is 9 km/hr and speed of current is 5 km/hr. If time taken to cover a certain distance upstream is 14 hours, then how ...
Speed of a boat in still water is three times the speed of the boat in upstream. If the boat takes 40 minutes to cover 15 km in downstream, then find th...
A swimmer swims from a point A against a current for 5 minutes and then swims current for next 5 minutes and comes to the point B. If AB is 100meters, t...
The speed of a boat in still water is 40 km/hr. If the boat covers 360 km in upstream in 12 hours, then find the time taken by the boat to travel 150 km...
Ricky can go on a motor boat with a speed of 15 km/hour in still water to a certain upstream point and come back to the starting point in a river which ...
A boat takes 7 hours to cover 245 km upstream and 9 hours to cover 477 km downstream. Find the time taken by the boat to cover 410 km upstream and 495 k...
