Question

b:9:3×2×5=30 să-l aflăm pe b​

Answer 1

b:9:3x2x5=30

$\frac{b}{9 \times 3} \times 2 \times 5 = 30$

$\frac{b}{27} \times 10 = 30$

$\frac{b}{27} = 3$

$b = 3 \times 27 \\ b = 81$