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Explain upstream and downstream i have many doubt in this question |
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Answer» When it goes in the direction of flow of river means downstream then we have to add (x+y) and if goes opposite to the direction of flow of river means upstream then we will subtract (x-y) If any boat is moving in direction of river flow is known as DOWNSTREAM andmoving opposite to river flow is UPSTREAM. Downstream=x+y and upstream =x-y It\'s easy yrr.. Just remember that downstream me speed add hoti hai and upstream me subtract Sorry i want to say in this concept |
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