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

A student classifies the number 0.101001000100001... as rational because it contains only the digits 0 and 1. Evaluate this claim correctly.

Answer and explanation

Correct answer: It is an irrational number because its decimal expansion is non-terminating and non-repeating.

Option A is correct. The decimal expansion of a rational number is either terminating or recurring. In this number, the number of zeros between successive 1s keeps increasing, so no fixed block repeats; hence the expansion is non-terminating and non-repeating. Using only the digits 0 and 1 does not make a number rational. Exam tip: For an infinite decimal, check whether a fixed repeating pattern exists before classifying it as rational.

Related tags

Real NumbersIrrational NumbersRational NumbersDecimal ExpansionNumber SystemsMathematicsClass 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.