Saved Bookmarks
| 1. |
How many terms are there in the AP 10, 15, 20, 25,... 120? (a) 21 (b) 22 (c) 23 (d) 24 |
|
Answer» Correct option (c) 23 Explanation: In order to count the number of terms in the AP, use the shortcut: [(last term − first term)/ common difference] + 1. In this case it would become: [(120 − 10)/5] + 1 = 23 |
|