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Let `a_(1), a_(2), ..., a_(30)` be an A. P., S = `Sigma_(i=10)^(30) a_(1)` and T = `Sigma_(i=10)^(15) a_((2i-1))`. If `a_(5)` = 27 and S - 2T = 75, then `a_(10)` is equal to

A

57

B

47

C

42

D

52

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D
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