Ex 5.3, 14
Last updated at Dec. 8, 2016 by Teachoo
Transcript
Ex 5.3 ,14 Find the sum of the odd numbers between 0 and 50. Odd numbers between 0 to 50 are 1, 3, 5, 7, ……,49 Here, First term = a = 1 Last term = l = 49 There are 25 such terms So, n = 25 We need to find sum So, we can use formula Sn = 𝑛/2 (a + l) Putting values in the formula Sn = 𝑛/2 (a + l ) = 25/2 (1+49) = 25/2×50 = 625 Therefore, the sum of odd number between 0 & 50 is 625
Chapter 5 Class 10 Arithmetic Progressions
Serial order wise
About the Author
Davneet Singh
Davneet Singh is a graduate from Indian Institute of Technology, Kanpur. He has been teaching from the past 7 years. He provides courses for Mathematics and Science from Class 6 to 12. You can learn personally from here https://www.teachoo.com/premium/maths-and-science-classes/.
