Question

find the common difference if for an A.P. the difference between the 24th term and 17th term is -56.​

Answer 1

Answer:

let the common difference be d

the 24 th term of a.p is a+23d

the 17th term is a + 16d

according to the question,

a+ 23d - ( a+16d)= -56

a+23d-a-16d = -56

23d - 16d= -56

7d = -56

d = -8