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

If (A(t)=90-4t) and (B(t)=30+2t), when will (A(t)) be (12) more than (B(t))?

Answer and explanation

Correct answer: \(t=8\)

“12 more” means \(A(t)-B(t)=12\). Therefore, \((90-4t)-(30+2t)=12\), so \(60-6t=12\). Hence, \(6t=48\) and \(t=8\). At \(t=10\), the two values become equal, so it is a close but incorrect option. Exam tip: In “more than” questions, first write the difference between the two quantities.

Related tags

Linear EquationsPolynomialsLinear Growth And DecayComparison Of ExpressionsAlgebraic ReasoningIntroduction To PolynomialsMathematicsClass 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.