{:(4,5,6),(3,4,?),(2,1,2),(9,10,12):}...

`{:(4,5,6),(3,4,?),(2,1,2),(9,10,12):}`

A

8

B

4

C

2

D

6

लिखित उत्तर

Verified by Experts

The correct Answer is:

B

`4 + 3 + 2 = 9`
`5 + 4 + 1 = 10`
`6 + ? + 2 = 12`
`rArr ? = 12 - 8 = 4`

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