If + stands for division, `'-:'` stands for multiplication, '`xx`' stands for subtraction and - stands for addition, which one of the following is correct?

Options

A. `18xx6+7-:5-2=16`
B. `18-:6xx7+5-2=22`
C. `18-:6-7+5xx2=20`
D. `18+6-:7xx5-2=18`

Answer

D

Explanation

Option (1)
`18xx6+7-:5-2=16`
`implies18-6-:7xx5+2=16`
`implies18-(6)/(7)xx5+2=16`
`implies18-(30)/(7)+2=16`
`implies(126-30+14)/(7)=16`
`implies(110)/(7)ne16`
Option (2)
`18-:6xx7+5-2=22`
`implies18xx6-7-:5+2=22`
`implies108-(7)/(5)+2ne22`
Option (3)
`18-:6-7+5xx2=20`
`implies18xx6+7-:5-2=20`
`implies108+(7)/(5)-2ne20`
Option (4)
`18+6-:7xx5-2=18`
`implies18-:6xx7-5+2=18`
`implies3xx7-5+2=18`
`implies21-5+2=18`