Question
What is the mean of a data if its Pearson's coefficient
of skewness is 0.25, standard deviation is 7 and mode is 20.Solution
- A motorboat covers 96 km downstream in 4 hours. Coming back upstream over the same distance, it takes 8 hours longer than the downstream time. Find the spe...
A boat can travel 18 km downstream in 2 hours and 12 km upstream in 3 hours. What is the speed of the boat in still water?
The speed of a boat in still water is 5 km/hr more than that of the current. The time taken by the boat to cover 425 km downstream is 8.5 hours. Find th...
A boatman rows 216 km upstream in 6 hours and 432 km downstream in 6 hours. How long will it take to row 324 km in still water?
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If the sum of upstream and downstream speed is 20 km/hr and the speed of the current is 5 km/hr. Then find time taken to cover 45 km in downward?
A boat can cover 60 km in still water and 75 km in downstream in 4 hours and 3 hours respectively. Find the time taken by the boat to cover 60 km upstre...
A boat running downstream covers a distance of 24 km in 3 hrs while it covers the same distance upstream in 6 hrs. Then speed of the boat in still water is
Speed of a boat in still water is 5 times more than the speed of stream. If boat covers 147 km in downstream in 7 hours, then find the time taken by the...
When travelling with the current, a man takes 5 hours to cover the distance that he would've covered in 15 hours while travelling against the current. ...
