Question 60Asked in CTET August 2023 Paper 1, 20 Aug 2023

The sum of 5 – 5 + 5 – 5 + 5 – 5 ……, to odd number of terms is :5 – 5 + 5 – 5 + 5 – 5 ......, के विषम संख्या पदों का योगफल है :

5 – 5 + 5 – 5 + 5 – 5 ......, के विषम संख्या पदों का योगफल है :
  1. A1515
  2. B00
  3. C– 5– 5
  4. D55
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Correct answer: (D) 55

Explanation

The terms cancel in pairs (5 − 5 = 0); with an odd number of terms one extra +5 is left, so the sum is 5.पद जोड़ों में कटते जाते हैं (5 − 5 = 0); विषम संख्या में पद होने पर एक अतिरिक्त +5 बचता है, इसलिए योगफल 5 है ।

From CTET August 2023 Paper 1, 20 Aug 2023 — Previous Year Paper

This is question 60 of CTET August 2023 Paper 1, 20 Aug 2023 — 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.