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1. The single discount equivalent to two successive discount of 20% and 5% is = ?

A. 24%

B. 25%

C. 22%

D. 23%

Solution:

Two successive discount is equivalent

\begin{aligned} = 20 + 5 - \frac{20 \times 5}{100} \\ = 25 - 1 \\ = 24 % \end{aligned}

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