If '-' stands for ' -:' '+' stands for ...

If '-' stands for `' -:' ` '+' stands for 'x', `' -:' ` for '-'and 'x' for '+' , which one of the following equations in correct?

A

`30 - 6 + 5 xx 4 -: 2 = 27`

B

`30 + 6 - 5 -: 4 xx 2 = 30`

C

`30 xx 6 -: 5 - 4 + 2 = 32`

D

`30 -: 6 xx 5 + 4 - 2 = 40`

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The correct Answer is:

A

`30 - 6 + 5 xx 4 -: 2 = 27`
`rArr 30 -: 6 xx 5 + 4 - 2 = 27`
`rArr 25 + 4 - 2 = 27`
`30 + 6 - 5 -: 4 xx 2 = 30`
`rArr 30 xx 6 -: 5 - 4 + 2 = 30`
`rArr 36 - 4 + 2 ne 30`
` 30 xx 6 -: 4 + 2 = 32`
` rArr 30 + 6 - 5 -: 4 xx 2 ne 32`

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