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If '+' means 'xx','-' means '+', 'xx' me...

If '+' means `'xx','-'` means `'+', 'xx'` means `'-:'` and `'-:'` means '-' then `12xx2+6-7-:5=?`

A

38

B

39

C

40

D

37

Text Solution

Verified by Experts

The correct Answer is:
A

`12xx2+6-7-:5=?`
`implies?=12-:2xx6+7-5`
`implies?=6xx6+7-5`
`implies?=36+7-5=38`
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