A) Does not change
B) decrease by 1%
C) Increase by 1%
D) increase by 0.1%
Correct Answer: B
Solution :
If the value of a number is first increased by x % and later decreased by x%, the net change is always a decrease which is equal to x% of x. \[\therefore \] Percentage decrease \[=10%\,\,\text{of}\,\,10=\frac{10\times 10}{100}=1\]
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