The 10th term of an ap is 8 and its 20th term is 29 and the sum is 155.What is the common difference of the ap
Answers
Answered by
1
Answer:
21/10
Step-by-step explanation:
Given:
a(10) = 8
a + 9d = 8 ----------(1)
a(20) = 29
a + 19d = 29 --------------(2)
(2) - (1):
a + 29d - a - 19d = 29 - 8
10d = 21
d = 21/10
I hope it is helpful for you............
Plzzz mark me as branliest.........
Similar questions