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Start learning 50% faster. Sign in nowFirst 13 whole numbers = 0, 1, 2, …….., 26, 27 Average = (1st term + last term)/2 = (0 + 27)/2 = 13.5
A boat racer can row 45/2km/h in still water. If the speed of river is 12.5 km/h, it takes him 40 minutes to row to a place and back, how far off is the...
Find the total distance covered by boat in each upstream and downstream in 5 hours if the speed of boat in still water and speed of current is 20 km/h a...
The speed of a boat in still water is 30 km/hr. If the boat covers 160 km in upstream in 8 hours, then find the time taken by the boat to travel 120 km ...
A man can row one quarters of a kilometer against the stream in 30/4 minutes and return in 5/2 minutes. The speed of the man in still water is:
Speed of a boat in still water is three times the speed of the boat in upstream. If the boat takes 48 minutes to cover 24 km in downstream, then find th...
A boat takes one-third time in moving a certain distance downstream than upstream. The ratio of the speed of the boat in still water and that of the cur...
Arjun covers a distance of 96 km downstream and then returns the same distance upstream, completing the entire journey in 7 hours. Given that the speed ...
A boat travels 315 km downstream in 7 hours and 135 km upstream in 9 hours. Determine the total time the boat takes to cover 150 ...
A boat has a speed of 52 km/h in still water. It takes 8 hours to travel from point B to point A downstream. The total distance between the two points ...
Speed of a boat in still water is 10 kmph and speed of stream is 7 kmph. A man rows to a place at a distance of 51 km and come back to starting point. T...
