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The 3 methods used for calculating the national income are : ● Income method ● Output method or Product method ● Expenditure method
The speed of a boat in still water is 28 km/hr. If the boat covers 140 km in upstream in 7 hours, then find the time taken by the boat to travel 144 km ...
A man can row at 36 km/hr in still water. In a stream which is flowing at 12 km/hr, it takes him 3 hrs to a place and back. How far is the place?
A boat's speed in calm water exceeds the speed of the current by 12 km/hr. Given that the current's speed is 1.25x km/hr and the boat takes 5 hours to t...
The time taken by a boat to cover 72 km downstream is 3 hours less than the boat to cover a certain distance in upstream. The dow...
The speed of a boat in still water is 8 km/hr and speed of current is 4 km/hr. If time taken to cover a certain distance upstream is 12 hours, then how ...
Motor boat covers a certain distance downstream in 10 hours. It covers the same distance upstream in 15 hours. If the speed of the water is 9 km/hr, t...
When travelling downstream, a boat takes 5 hours to travel 300 km. If the speed of the stream is (2/5)th of downstream speed of the boat, the...
A boat takes a total of 1.5 hours to cover 20km upstream and 15 km downstream. If the boat takes 4.8 hours to cover 120 km in still water, then find the...
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
The speed of the boat in still water is 12 km/hr and the speed of the stream is 9 km/hr. A boat goes 84 km downstream with its usual speed but at the ti...