Rivers Boats and streams
In Boats and stream based problems,we need to calculate either speed or time to reach some point either upstream or downstream. In water,the direction of the flow is downstream and opposite direction is upstream.
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Work time efficiency based problem tips
One of the important topics in aptitude solving is work-time-efficiency based problems but we should be able to manage time which is possible by solving more and more problems. Important points to remember: If A can finish work in m minutes and B can finish the same work in n minutes then both