Question

i mark as BRAINLIST.........

Answer 1

$50 \times 16 = 800 \\ 1.50 \times 12 = 18 \\ 18 \times 50 = 900 \\ 20 \times 1.5 = 30 \\ 900 - 30 = 870 \\ \frac{70 \times 100}{800} = \frac{7000}{800} \\ = 8.75$Profit