Question

{[(20:10 x 2) +5]:3}+2

Answer 1

{[(20:10 x 2) + 5] : 3} + 2

{[2 x 2 + 5] : 3} + 2

{[4 +5] : 3 } + 2
{9 : 3 } + 2
3+2 = 5