बढ़ते हुए क्रम में व्यवस्थित सात क्रमागत सम संख्याओं का योग 98 है इस क्रम की तीसरी संख्या क्या है? - badhate hue kram mein vyavasthit saat kramaagat sam sankhyaon ka yog 98 hai is kram kee teesaree sankhya kya hai?

Free

CT 1: Growth and Development - 1

10 Questions 10 Marks 10 Mins

दिया गया है: 

सात क्रमागत सम संख्याओं का योग 98 है।

गणना:

माना सात क्रमागत सम संख्याएं x, x + 2, x + 4, x + 6, x + 8, x + 10, x + 12 हैं। 

प्रश्न के अनुसार, x + (x + 2) + (x + 4) + (x + 6) + (x + 8) + (x + 10) + (x + 12) = 98

⇒ 7x + 42 = 98 

⇒ 7x = 98 - 42

⇒ 7x = 56

⇒ x = 56/7 

⇒ x = 8

⇒ तीसरी संख्या x + 4 है, x = 8 मान रखने पर 

⇒ हमें तीसरी संख्या मिलती है, 8 + 4 = 12

अतः, तीसरी संख्या 12 है। 

Last updated on Sep 21, 2022

The NCTE (National Council for Teacher Education) has revised the TET eligibility criteria recently and has issued a notification stating that a candidate who has been admitted or undergoing any of the Teacher Training Courses (TTC) is eligible for appearing in the TET Examination. Candidates appearing for the CTET (Central Teacher Eligibility Test) are exempted from any age limit. They have to just satisfy the required educational qualification. Candidates are qualified for the CTET exam based on their results in the written exam. The written exam will consist of Paper 1 and Paper 2 in which candidates have to score a minimum of 60% marks to qualify. Check out the CTET Selection Process here.