Question

In A.P. 3 + 7 + 11 + 15 + …. upto 30 terms, 12th term from

end is-

• A. 75
• B. 76
• C. 51
• D. 19

Answer 1

Answer: (A)

75

Answer 2

T₁₂ (5) = T_{30 – 12 +1} (2)

= T₁₉(2) = a + 18.d

= 3 + 18.4 = 75