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

Which condition is correct for the equations (15x+py=45) and (7x+2y=24) to have a unique solution?

Answer and explanation

Correct answer: \(p\ne\frac{30}{7}\)

Two linear equations have a unique solution when \(\frac{a_1}{a_2}\ne\frac{b_1}{b_2}\). Here, the condition is \(\frac{15}{7}\ne\frac{p}{2}\), which gives \(30\ne7p\), or \(p\ne\frac{30}{7}\). Hence, option B is correct. In option A, the two coefficient ratios become equal, so the system does not have a unique solution. Exam tip: For a unique solution, check that the ratios of corresponding coefficients are unequal.

Related tags

Linear EquationsUnique SolutionSolvability ConditionsParameterGrade 10 MathematicsConditions For SolvabilityPair Of Linear Equations In Two VariablesMathematics

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.