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No. of children in Oct, 2016 = 78% of 65000 = 50, 700 No. of children in Nov, 2016 = 56% of 75000 = 42, 000
Boat ‘A’ can cover 240 km in still water in 12 hours. In still water, if the ratio of the speed of boat ‘A’ to that of ‘B’ is 4:7 and the sp...
A boy can swim in water with a speed of 10 km/hr in still water. If the speed of the stream is 6 km/hr, what will be the time taken by the boy to cover ...
A boat covers 72 km upstream and 108 km downstream in 6 hours and 4.5 hours, respectively. Find the time taken by the same boat to cover 150 km in still...
Speed of a boat in still water to speed of boat in upstream is 9:5. If the boat can travel 390 km in downstream in 5 hours, then find the time taken by ...
A boat goes 40 km in upstream in 5 hours and takes 3 hours to complete a distance of 18 km in downstream. Find the speed of boat in still water.
Speed of a boat in still water to speed of boat in upstream is 10:7. If the boat can travel 390 km in downstream in 5 hours, then find the time taken by...
A boat sails 150 km in downstream direction in 5 hours. If the upstream speed is one-third of its downstream speed, calculate the time it will take to c...
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...