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The 40th term of 8, 5, 2,.... is

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The 40th term of 8, 5, 2,.... is

(A) -107

(B) -109

(C) -111

(D) -113

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Correct option is (B) -109

a = 8

d = a2 - a1

= 5 - 8

= -3

a40 = a + 39d

= 8 + 39 x (-3)

= 8 - 117

= -109

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