The middle most term (s) of the AP:–11, –7, –3, ..., 49 is:
A. 18, 20
B. 19, 23
C. 17, 21
D. 23, 25
Answer:C
The middle most term (s) of the AP:–11, –7, –3, ..., 49 is:
A. 18, 20 B. 19, 23 C. 17, 21 D. 23, 25
Explanation: Here, a = −11