If a 1 , a 2 , a 3 , ... are in A.P. such that a 1 + a 7 + a 16 = 40, then the sum of the…
Mathematics · JEE Main · NTA Exams — Progression and Series
If a1, a2, a3, ... are in A.P. such that a1 + a7 + a16 = 40, then the sum of the first 15 terms of this A.P. is:
- 120
- 150
- 280
- 200
Answer
(D) 200
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