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11x + 12y= 58 तथा 12x +11y = 57, तो 4(x+...

`11x + 12y= 58` तथा `12x +11y = 57`, तो `4(x+y)` का मान है

A

5

B

12

C

20

D

24

लिखित उत्तर

Verified by Experts

The correct Answer is:
C
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