If + means ÷, - means `xx,xx` means + and `-:` means -, then which of the alternatives is correct ?

Options

A. `5xx8-5+5-:1=12`
B. `55-2+10-:1xx5=16`
C. `38-:10-5+7xx8=25`
D. `10-12+2-:30xx1=10`

Answer

A

Explanation

Option (1)
`5xx8-5+5-:1=12`
`implies5+8xx5-:5-1=12`
`implies5+8xx1-1=12`
`implies5+8-1=12`
Option (2)
`55-2+10-:1xx5=16`
`implies55xx2-:10-1+5=16`
`implies(55xx2)/(10)-1+5=16`
`implies11-1+5ne16`
Option (3)
`38-:10-5+7xx8=25`
`implies38-10xx5-:7+8=25`
`implies38-(10xx5)/(7)+8=25`
`implies38-(50)/(7)+8ne25`
Option (4)
`10-12+2-:30xx1=10`
`implies10xx12-:2-30+1=10`
`implies10xx6-30+1=10`
`implies60-30+1ne10`