[tex] \frac{25}{100} \times \frac{25}{100} \times \frac{50}{100} \times x = 25[/tex]
[tex] \frac{1}{4} \times \frac{1}{4} \times \frac{1}{2} \times x = 25[/tex]
[tex] \frac{x}{4 \times 4 \times 2} = 25[/tex]
[tex] \frac{x}{32} = 25[/tex]
[tex]x = 25 \times 32 = 800[/tex]
