A) 28 mm
B) 56 mm
C) 70mm
D) 140mm
Correct Answer: D
Solution :
\[p=p_{A}^{o}{{x}_{A}}+p_{B}^{o}{{x}_{B}}\] \[\Rightarrow \] \[84=70\times 0.8+p_{B}^{o}\times 0.2\] \[84=56+p_{B}^{o}\times 0.2\] \[p_{B}^{o}=\frac{28}{0.2}=140\,\,mm\]You need to login to perform this action.
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