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Let a1, a2,...,a30 be an AP, S=sum(i=1)^...

Let `a_1, a_2,...,a_30` 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) 42 (c) 52 (4) 47

A

57

B

47

C

42

D

52

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The correct Answer is:
D
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ALLEN-SEQUENCE AND PROGRESSION-Exercise (JM)
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