Question

find the value of a and b if A.P.is a,7,b,23​

Answer 1

Answer:

As the following sequence is in AP

so,

7-a=23-b

b-a=23-7

b-a=16

Answer 2

Step-by-step explanation:

d = 7 - a -----(1)

d = b - 7 -----(2)

d = 23 - b. -------(3)

On comparing eq. 2 and 3

b - 7 = 23 - b

2b = 30

b = 15

also from eq (1) and (2)

7 - a = b - 7

a + b = 14

putting b = 15

so a = -1