A) 80%, \[+\,2.7\,\text{unit}\]
B) 20%, \[-\,27\,\text{unit}\]
C) 20%, \[+\,2.7\,\text{unit}\]
D) 80%, \[-\,27\,\text{unit}\]
Correct Answer: C
Solution :
\[\times 100=\frac{6-4}{6+4}\times 100=20%\]You need to login to perform this action.
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