Discounted 5850

The T-shirts were discounted by 30%, so the three T-shirts cost only CZK 50 more after the discount than the two T-shirts cost before the discount. How much did one T-shirt cost before the deal?

Correct answer:

x =  500 Kc

Step-by-step explanation:

$$\begin{gathered} r=100\%-30\%=1-\frac{30}{100}=0.7 \\ 3\cdot x\cdot r=50+2\cdot x \\ 3\cdot x\cdot 0.7=50+2\cdot x \\ 0.1x=50 \\ x=\frac{50}{0.1}=500 \\ x=500=500\text{Kc} \end{gathered}$$

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