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If a nine-digit number 389x6378y is divi...

If a nine-digit number 389x6378y is divisible by 72, then the value of `sqrt(6x+7y)` will be :
यदि नौ अंकों की एक संख्या 389x6378y , 72 से विभाजित है, तो `sqrt(6x+7y)` का मान होगा :

A

6

B

`sqrt 13`

C

`sqrt 46`

D

8

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