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Question 82Asked in BPSC TRE 3.0 (2024) Mathematics Class 11-12

Solution of congruence relation 2x ≡ 1 (mod 7) isसर्वांगसम सम्बन्ध 2x ≡ 1 (mod 7) का हल है

सर्वांगसम सम्बन्ध 2x ≡ 1 (mod 7) का हल है
  1. A44
  2. B22
  3. C11
  4. DMore than one of the aboveउपर्युक्त में से एक से अधिक
  5. ENone of the aboveउपर्युक्त में से कोई नहीं
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Correct answer: (A) 44

Explanation

We need 2x − 1 to be divisible by 7. For x = 4, 2x = 8 ≡ 1 (mod 7), so x ≡ 4 (mod 7).2x − 1 का 7 से विभाज्य होना आवश्यक है। x = 4 के लिए 2x = 8 ≡ 1 (mod 7), इसलिए x ≡ 4 (mod 7)।

From BPSC TRE 3.0 (2024) Mathematics Class 11-12 — Previous Year Paper

This is question 82 of BPSC TRE 3.0 (2024) Mathematics Class 11-12 — Previous Year Paper. See all questions of this paper with answers, or attempt the paper as a timed online test to get your score and all-India rank.