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 says that the number 0.101001000100001... is rational because 0 occurs repeatedly in it. Which option is correct about this statement?

Answer and explanation

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

The number of zeros between successive 1s keeps increasing: 1 zero, then 2, then 3, then 4, and so on. Hence, no fixed block of digits repeats periodically. Its decimal expansion is non-terminating and non-repeating, so the number is irrational. The repeated occurrence of a digit alone does not make a number rational; a fixed repeating block is required. Exam tip: A rational number has either a terminating decimal expansion or a non-terminating recurring decimal expansion.

Related tags

Real NumbersIrrational NumbersDecimal ExpansionRational NumbersNon-Recurring DecimalsNumber 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.