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If 'xx' means '+','+' means '-:','-' mea...

If `'xx'` means `'+','+'` means `'-:','-'` means `'xx'` and `'-:'` means '-' then:
`=6xx4−5+2div1`

A

a. 10

B

b. 11

C

c. 12

D

d. 15

Text Solution

Verified by Experts

The correct Answer is:
D
Replacing the proper signs in the given expression, we have
`=6xx4-5+2-:1`
`= 6+4 xx 5-:2 - 1`
`= 6 + 4 xx 2.5 - 1`
`= 6+ 10- 1`
`= 16- 1=15`
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