Question

12 : ( 390 : ( 500 - ( 125 +35 x 7 )

Answer 1

12 : ( 390 : ( 500 - ( 125 +35 x 7 )

= 12 : (390 : (500 - (125 + 245) ) )

= 12 : (390 : ( 500 - 370 ) )

= 12 : ( 390 : 130 )

= 12 : 3

= 4 

Answer 2

\(12:\left(390:\left(500-\left(125+35\times7\right)\right)\right)\)

\(=12:\left(390:\left(500-370\right)\right)\)

\(=12:\left(390:130\right)\)

\(=12:3\)

\(=4\)