Question:
Find the number of terms in the series:
15, 20, 25, 30, …, 200
श्रृंखला में पदों की संख्या ज्ञात कीजिए:
15, 20, 25, 30, …, 200
Options:
- 37
- 38
- 39
- 40
- 37
- 38
- 39
- 40
Correct Answer: b)
Explanation:
\(a = 15, d = 5, T_n = 200\).
\(200 = 15 + (n – 1) \times 5 \implies 5(n – 1) = 185 \implies n – 1 = 37 \implies n = 38\).
\(200 = 15 + (n – 1) \times 5 \implies 5(n – 1) = 185 \implies n = 38\)।