Saved Bookmarks
| 1. |
Find 8th term from the end of the A. P - 7,10,13..... 18th |
|
Answer» Correct answer is 37, Explanation :-In this A.P. total terms are 18 so 8th term from last means 11th term from starting. (18-8+1=11th term), Now according to A.P. \'a\' is 7 (first term of A.P.) and \'d\' is 3 (second term - first term = 10-7=3), Using formula :- 11th term = a + 10d = 7 + 10(3) = 7+30 = 37 Answer is 34 Explanation:-- There are 18 terms so 8th term from lats means 18-8 = 10th term.In here,we have a=7 & d=3 So usinga^n= a+(n-1)×d =7+(10-1)×3 = 7+(9×3) = 7+27 =34 |
|