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Let the sums received by P, Q, R, S, T and U are a+5d, a+4d, a+3d, a+2d, a+d and a respectively a+5d + a+4d + a+3d + a+2d + a+d + a = 558 6a+15d = 558 0r 2a+5d = 186 And also, (a+5d) – (a+2d) = 36 3d = 36 d = 12 now from 2a+5d = 186 we get a = 63 sum of Q = a+4d sum of U = a sum of Q and U = a+a+4d = 174
A boat running downstream covers a distance of 39 km in 3 hrs and covering the same distance upstream in 13 hrs. What is the speed of a boat in still wa...
A boat travels a certain distance downstream in 72 minutes but takes 3 hours to cover the same distance upstream. The speed of the stream is 15 km/h. If...
A boat can cover 185 km in downstream in 5 hours and 120 km in upstream in 12 hours. Find the speed of boat in still water.
A boat covers a distance of 338 km upstream in 13 hours. After rain, the speed of the stream increases by 50%, and the speed of t...
A boat can travel 28 km downstream in 30 min. The ratio of the speed of the boat in still water to the speed of the stream is 5: 3. How much time will t...
Time taken by a boat to cover 253 km upstream is 49.99 % more than the time taken by the boat to cover 340 km downstream. Total time taken in covering b...
Speed of a boat in still water is 15 kmph and speed of stream is 12 kmph. A man rows to a place at a distance of 81 km and come back to starting point. ...
A man rows a certain distance downstream in 5 hours and back to the same point in 8 hours. If the speed of the stream is 4.5 km/hr then what is the spee...
If the sum of upstream and downstream speed is 30 km/hr and the speed of the current is 6 km/hr. Then find time taken to cover 84 km in downward?
Speed of current is equal to 25% of speed of boat in still water. If the boat takes 5 hours to cover 120 km in still water, then find the time taken by ...
