Question

7. How many terms of an AP must be taken for their sum to be equal to 120 if its third term is 9 and
the difference between the seventh and second term is 20 ?
(a) 7 (b) 8 (C) 9 (d) 6

Answer 1

Hopefully this would help you and thank you for asking me the question

Answer 2

Answer:

Step-by-step explanation:

8 terms...