If 20 is decreased by 40%, then we obtain .

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Solution

The correct option is C 12
40% of 20 = $\frac{40}{100}$ × 20 = 8.
Hence, 20 is decreased by 8.
Hence, if 20 is decreased by 40%, then we obtain (20-8) = 12.

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If 20 is decrease by 50%, then we obtain 10.

State true or false
If 20 is decreased by 50%, then we obtain 10.

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