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

For which (x) will (12,x,75) be consecutive terms of a positive geometric progression?

Answer and explanation

Correct answer: 30

For three consecutive terms of a geometric progression, the square of the middle term equals the product of the first and third terms: \(x^2=12\times75=900\). Thus \(x=\pm30\), but the progression is positive, so \(x=30\). If \(45\) is used, the two consecutive ratios are not equal. Exam tip: for consecutive GP terms \(a,b,c\), use \(b^2=ac\) directly.

Related tags

Geometric ProgressionGeometric MeanConsecutive TermsGrade 9 MathematicsSequences And ProgressionsMathematicsClass 9 Mcq

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.