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In 1972, the United Nations General Assembly decided to institute a World Development Information Day coinciding with United Nations Day on October 24. The General Assembly had the object of drawing the attention of world public opinion each year to development problems and the necessity of strengthening international co-operation to solve them. The day was further recognized as the date on which the International Development Strategy for the Second Nations Development Decade was adopted in 1970. Theme 2021: Action for Sustainable Development Goal
A Swimmer Walks 45km along the river's flow in 3 hours 45 minutes and walks 15km against the flow in 2 hours 30min. Find the speed of the boat in Still ...
Speed of boat is 20 km/hr. Speed of the stream is 20% less than speed of boat. Then find time taken by boat to go 90 km downstream.
A boat is navigating a river with a current speed of 2 km/h. It takes the boat 75 minutes longer to cover a distance of 56 km upstream than it does to c...
A man row a boat 1 km in 5 min, along the stream and 6 km in 1hrs against the stream, The speed of the stream will be
A man can row 32 km/hr in still water. It takes him thrice as long to row up as to row down the river. Find the rate of the current.
The downstream speed of a boat is 6 km/hr more than its upstream speed and the ratio of the speed of the boat in still water to the speed of the stream ...
If the sum of upstream and downstream speed is 48 km/hr and the speed of the current is 4 km/hr. Then find time taken to cover 84 km in downward?
The speed of the stream is 14 km/h. Boat ‘A’ covers 130 km distance against the stream in 5 hours and boat ‘B’ covers 100 km distance against th...
A boat goes 60 km in upstream in 5 hours and takes 3 hours to complete a distance of 12 km in downstream. Find the speed of boat in still water.
A man can row at 2 kmph in still water. If the velocity of current is 1 kmph and it takes him 4 hour to row to a place and come back, how far is the place?
