माना a(1),a(2),……………a(30) एक समान्तर श्र...

माना `a_(1),a_(2),……………a_(30)` एक समान्तर श्रेणी है, `S=sum_(i=1)^(30)a_(i)` तथा `Tsum_(i=1)^(15)a_((2i-1))` यदि `a_(5)=-27` तथा `S-2T=75`, तो `a_(10)` बराबर है-

A

47

B

42

C

52

D

57

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The correct Answer is:

C

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