nthterm of the sequence 1,2,3,5,7,9 what will be the formula for finding the nth term of a series in which the difference between the terms increase by 1 after every k elements. For example (for k = 3) : 1,2,3,5,7,9,12,15,18..
Themean of 1, 3, 5, 7, 9, 11, 13 is 7. We can easily solve this problem by following the given steps. Now, we know. Mean = Sum of all observations/total number of observations. Mean of the given data = 1+3+5+6+9+11+13/7 ( The total number of observations here is 7.

Eachnumber in the series, and any combination of those numbers is a subset of 1,3,5,7,9. To be more clear, 1 is a subset, so are 3,5,7 or 9. 1&3 are also a subset, so are 5&7 and 7&9. all of the numbers less any one of the numbers is also a subset. so 1,3,5,& & are a subset. as is 3,5,7&9. get it?

QuestionThe value of 1+3+5+7+9+.+25 is: A 196 B 625 C 225 D 169 Easy Solution Verified by Toppr Correct option is D) We take the first term a=1, last term l=25, common difference d=2 and the number of terms =n. Then, since it is an A.P. series, l=a+(n−1)d n= dl−a+1 = 225−1+1 = 225−1+2 = 225+1 = 226 =13 Let S n be the sum of n=13 terms Y4S9z.
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