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人気のある >

A watch was sold for 80, resulting in a 20% loss. What was the initial cost?

解

A watch was sold for 80, resulting in a 20% loss. What was the initial cost?

解

Amount before addition : 66.66666 \dots

解答ステップ

Translate the problem into an equation:

80 = x + 0.2 x

80 = x + 0.2 x : x = \frac{200}{3}

\frac{200}{3} = 66.66666 \dots

Amount before addition : 66.66666 \dots

人気の例

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