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Percentage

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  1. A number is increased by 10% and then it is decreased by 10%. The net change in the number is
    1. no increase or decrease
    2. 2% decrease
    3. 1% increase
    4. 1% decrease
Correct Option: D

Using Rule 4,
Net change

=10 - 10 -
10 × 10
% = –1% = 1% decrease
100


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