Question

7. If a, b, care in AP then relation between a, b, c can be
a) 2b = 2a + 3c
b) 2a=b+c
c) 2b = a + c
d)2c = a + b​

Answer 1

Answer:

answer is c option "2b=a+c"

Answer 2

Answer:

Option b) 2b = a + c is answer

Step-by-step explanation:

As a, b, c are in AP so there is a common difference amongst them

Difference d = b - a and also

d = c - b

By comparing both d we get,

b - a = c - b

b = c - b + a ( a is shifted to right)

b + b = c + a ( b is shifted to right)

2b = c + a

Hence b) option is our answer