Saved Bookmarks
| 1. |
12. If first term and 7th term of an A.P. are 18 and 30 respectively, find the 13th term. |
|
Answer» a=18a+6d=30a+6d-a=30-186d=12 so d=2so 13th term=a+12d=18+12(2)=18+24=42 |
|