2.6 : 50% × 10/13 = a.1 B 1 12 per 13 c.4 d.7 9 per 13

[tex] \frac{26}{10} \div \frac{50}{100} \times \frac{10}{13} \\ = \frac{26}{10} \times \frac{100}{50} \times \frac{10}{13} \\ = \frac{2600}{65} = 40[/tex]

26\10 : 50\100 = 26\10 x 100\50 = 130\25
130\25 x 10\13 = 1300\325 = 4.
Jawabannya = c. 4