Question

if A means +; B means - ; C means ÷ ; and D means x ; then 18 A 12 C 6 D 2 B 5 = ??

Answer 1

after placing respective formula's

$18 + 12 \div 6 \times 2 - 5 \\ 18 + 2 \times 2 - 5 \\ 18 + 4 - 5 \\ 22 - 5 \\ 17$