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 sequence (4x-3, 3x+5, x+21) is in an arithmetic progression. Which is the correct common difference?

Answer and explanation

Correct answer: \(0\)

In an arithmetic progression, the differences between consecutive terms are equal. Here, the second-minus-first difference is \((3x+5)-(4x-3)=8-x\), and the third-minus-second difference is \((x+21)-(3x+5)=16-2x\). So, \(8-x=16-2x\), giving \(x=8\). The terms then become \(29,29,29\), so the common difference is \(0\). \(8\) is only an intermediate value obtained while solving, not the common difference. Exam tip: first equate consecutive differences to find the variable, then calculate the common difference.

Related tags

Arithmetic ProgressionCommon DifferenceLinear EquationsClass 10 MathematicsAp TermsIntroduction To Aps And Common Difference.Introduction To Aps And Common DifferenceArithmetic 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.