Question

The sum of the first 7 terms of an arithmetic progression is 140 and the sum of the

next 7 terms of the same progression is 385 then find the arithmetic progression.​

Answer 1

❥ Aɴsᴡᴇʀ

5x+3x=4x+2

2x=4x+2

2x−4x=2

6x=2

x= 6-2

❥x= 3