Răspuns:
[tex]a) \: 75\% \times 200 = \frac{75}{100} \times 200 = \frac{75 \times 200}{100} = \\\frac{15.000}{100} = 150[/tex]
[tex]b) \: \frac{1}{5} = 20\% \times x = \frac{1}{5} \div 20 = \frac{1}{5} \div \frac{20}{100} = \\ \frac{1}{5} \times \frac{100}{20} = \frac{1 \times 100}{5 \times 20} = \frac{100}{100} = 1[/tex]
[tex]c) \: 20\% \times x = 20 = > \frac{20 {}^{(20} }{100} \times x = 20 = > \\ \frac{1}{5} \times x = 20 = >x = 5 \times 20 = > x = 100[/tex]
[sᴛʀᴘʜᴄʀɪᴢ09]
