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(191xx7+231-839)=(?)^(2)...

`(191xx7+231-839)=(?)^(2)`

A

27

B

3

C

23

D

37

Text Solution

Verified by Experts

The correct Answer is:
A
`1337+231-839=729=(?)^(2)`
`?^(2)=27xx27=729`
`:.?=27`
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