A) 58-8%
B) 51-2%
C) 50-0%
D) 40-0%
Correct Answer: B
Solution :
Required percentage\[=\]\[{{\left( 1-\frac{20}{100} \right)}^{3}}\times 100\] \[={{\left( \frac{4}{5} \right)}^{3}}\times 100\] \[=\frac{64}{125}\times 100\] \[=51.2%\]You need to login to perform this action.
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