Question (135/147)

What mathematical operation should come at the place of ? in the  following equation:
2 ? 6 - 12 `-:`   4 + 2 = 11 

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(A)  +

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(B)  -

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(C)  x

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(D)  `-:`

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Question (136/147)

100 * 10 - 100 + 2000 `-:`  100 =  ?

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(A)  29

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(B)  780

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(C)  920

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(D)  979

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