Question

) If 7, a, 15, b are the consecutive terms of an A.P. then value of a, and b, will be?​

Answer 1

Answer:

ans a=11, b=19

Step-by-step explanation:

use 2a=a+b

Answer 2

Answer:

a = 11, b = 19

Step-by-step explanation:

As 7,a,15,b are in AP so -

15 - a = a - 7

=> 15 + 7 = a + a

=> 2a = 22

=> a = 22/2 = 11

now common difference between the terms (d) = a - 7 = 11 - 7 = 4

So, b = 15 + d

=> b = 15 + 4 = 19