Question

12:{390:[500-(125+35.7)]} = ?

Answer 1

=12:{390:[500-(125+245)]}

=12:{390:[500-370]}

=12:{390:130}

=12:3

=4

Answer 2

= 12 : {390 : [500 - (125 + 245) ] } = 12 : [390 : (500 - 370)] = 12 : (390 : 130) = 12: 3 = 4