Behaviour being used: Adaptive mode
Minimum fraction: 0
Question summary: Quina de les expressions següents calcula el preu de x iogurts si cadascun val 0.23 euros i al supermercat on els comprem tenen l'oferta 3 x 2 (compra'n 3 i paga'n 2)?: $$\left ( x - 3 \cdot \left [ \displaystyle\frac{x}{3} \right ] \right ) \cdot 0.23 + \left [ \displaystyle \frac{x}{3} \right ] \cdot 0.23 \cdot 3$$; $$\left ( x - 2 \cdot \left [ \displaystyle\frac{x}{3} \right ] \right ) \cdot 0.23 + \left [ \displaystyle \frac{x}{3} \right ] \cdot 0.23 \cdot 3$$; $$\left ( x - 3 \cdot \left [ \displaystyle\frac{x}{3} \right ] \right ) \cdot 0.23 + \left [ \displaystyle \frac{x}{3} \right ] \cdot 0.23 \cdot 2$$; $$\left ( x - 3 \cdot \left [ \displaystyle\frac{x}{2} \right ] \right ) \cdot 0.23 + \left [ \displaystyle \frac{x}{2} \right ] \cdot 0.23 \cdot 3$$
Right answer summary: $$\left ( x - 3 \cdot \left [ \displaystyle\frac{x}{3} \right ] \right ) \cdot 0.23 + \left [ \displaystyle \frac{x}{3} \right ] \cdot 0.23 \cdot 2$$
Question state: todo