Question

7. A es D.P. a Be IP. a C. Hallar "A" cuando B = 10
y = 5. Si cuando B = 20, C = 15 y A = 2​

Answer 1

$\frac{a}{b} \times c \\ \frac{a}{10} \times 5 = \frac{2}{20} \times 15 \\ \frac{5a}{10 } = \frac{15}{10} \\ 5a = 15 \\ a = 3$