InterviewSolution
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Discuss the effect of poaching on animals that are poached |
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Answer» SolutioN :- Let the SPEED of the stream be x km/h. so, speed of BOAT in downstream is ( 11 + x ) and also speed of boat in upstream is ( 11 - x ) Distance cover by boat is 12 km. The speed of boat in still water is 11 km/h \boxed{\TT \bullet \: \: \: Distance = Speed \times Time.} ∙Distance=Speed×Time.
\begin{gathered} \tt \rightarrow \dfrac{12}{11 - x} + \dfrac{12}{11 + x} = 2 \times \dfrac{3}{4} \\ \\ \end{gathered} → 11−x 12
+ 11+x 12
=2× 4 3
\begin{gathered} \tt \rightarrow \dfrac{12}{11 - x} + \dfrac{12}{11 + x} = \dfrac{11}{4} \\ \\ \end{gathered} → 11−x 12
+ 11+x 12
= 4 11
\begin{gathered} \boxed{\tt \bullet \: \: \: {a}^{2} + {B}^{2} = (a + b)(a - b)} \\ \\ \end{gathered} ∙a 2 +b 2 =(a+b)(a−b) |
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