A) 1
B) 2
C) 3
D) 4
Correct Answer: D
Solution :
\[\frac{65.5-62.5}{1}=K\left( \frac{65.5+62.5}{2}-22.5 \right)\]Þ \[K=\frac{3}{41.5}\] And again \[\frac{46.5-40.5}{t}=\frac{3}{41.5}\left( \frac{46.5+40.5}{2}-22.5 \right)\] Þ \[\frac{6}{t}=\frac{3}{41.5}\times 21\] Þ \[t=\frac{82}{21}\tilde{-}4\]minute.You need to login to perform this action.
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