Update

Muft Shiksha™ एक 100% Free Education Portal है 🇮🇳, जिसका उद्देश्य Class 9–12 के हर विद्यार्थी तक High-Quality Education को पूरी तरह मुफ्त पहुँचाना है। 🇮🇳 हम मानते हैं कि अच्छी शिक्षा किसी student की आर्थिक स्थिति पर निर्भर नहीं होनी चाहिए। 🇮🇳 हर विद्यार्थी को वही Quality Study Material, MCQs, Quizzes, Exam Preparation, Concept-Based Learning और Bilingual Support मिलना चाहिए, जो आमतौर पर महंगी Coaching या Premium Platforms में मिलता है। Muft Shiksha™ 🇮🇳 इसी सोच के साथ बनाया गया है

Subjects
0 reads0 ratings0 helpful

The first three terms of an arithmetic progression are 3, 8, 13. Which of the following expressions represents the nth term of this AP?

Answer and explanation

Correct answer: \(5n-2\)

Here, the first term is \(a=3\) and the common difference is \(d=8-3=5\). Thus, \(a_n=a+(n-1)d=3+5(n-1)=5n-2\). Option B gives 7 when \(n=1\), not 3. Exam tip: identify \(a\) and \(d\) first.

Related tags

Arithmetic ProgressionNth TermCommon DifferenceSequence FormulaClass 10 MathematicsFinding The $N$Th Term Of An ApFinding The N Th Term Of An ApArithmetic Progressions (Ap)

Was this question useful?

No ratings yetWrite a review / Rate this question

Student Reviews

No published reviews yet.

Add Muft Shiksha to your Home Screen

In Safari, tap Share, then Add to Home Screen.