Quantitative Aptitude
A boatman rows to a place 30 km distant and back in 14 hours. He finds that he can row 10 km with the stream at the same time as 4 km against the stream. Find the speed (in km/h) of the stream.
Study the given graph carefully and answer the question that follows.
The given graph shows the number of male and female volunteers for helping hadicapped people from four different districts A,B,C,D.
Find the number of volunteers altogether.