A) 7
B) 6.5
C) 7.5
D) 8
Correct Answer: A
Solution :
[a] Total deffective part\[=\frac{5}{100}\times 120+\frac{10}{100}\times 80\] \[=6+8=14\] Deffective % = \[\frac{14}{200}\times 100=7%\]You need to login to perform this action.
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