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Let a(1), a(2),....a(3) be an AP, S = su...

Let `a_(1), a_(2),....a_(3)` be an AP, `S = sum_(i = 1)^(30) a_(i) and T = sum_(i=1)^(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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The correct Answer is:
D
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