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
1 reads0 ratings0 helpful

What conclusion follows from comparing the ratios of a and b in 7x + 19y = 86 and 13x + 35y = 158?

Answer and explanation

Correct answer: 7/13 ≠ 19/35, therefore one unique solution

For the pair a1x + b1y = c1 and a2x + b2y = c2, the relationship between a1/a2 and b1/b2 determines whether the lines have the same slope. Here, 7/13 is not equal to 19/35: cross-multiplication gives 7 × 35 = 245, whereas 19 × 13 = 247. Thus the first two ratios are unequal. The lines have different slopes and must intersect at exactly one point, so the pair has a unique solution. Option C is correct. Infinite solutions require all three ratios to be equal, while no solution requires the first two ratios equal but the constant ratio different.

Related tags

Linear-EquationsRatio-ComparisonUnique-SolutionConditions For SolvabilityPair Of Linear Equations In Two VariablesMathematicsClass 10 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.