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 = {2, 4, 6}, what is the value of n(A)?

Answer and explanation

Correct answer: 3

The governing concept is the cardinality of a set. The notation n(A) denotes the number of distinct elements in set A; it does not denote the largest element, the sum of the elements, or a numerical operation on them. In A = {2, 4, 6}, the distinct members are 2, 4, and 6, so the set contains exactly three elements. Therefore n(A) = 3 and option B is correct. Option A counts too few elements, option C adds an element that is not present, and option D mistakes the largest listed member, 6, for the number of members. If an element were repeated in a set, it would still be counted only once, but no repetition occurs here. Directly counting the displayed distinct members gives the answer.

Related tags

SetsCardinalityNumber Of ElementsSet NotationGeneral Chapter PracticeCommon QuestionsCommonMathematics

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.