Question

The value of x if 7, x, 23 are in the ap

Answer 1

Answer:

Answer value of x = 15

Que. Find the value of x if 7, x, 23 are in Ap

sol. method 1

a = 7 a2 = x a3 = 23

a3 = a + 2d

23 = 7 + 2d

23 - 7 = 2d

16 = 2d

8 = d

a2 = a + d

= 7 + 8

= 15 ans.

so the value of x = 15

method 2

a3 - a1 = 2d

23 - 7 = 2d

16 = 2d

8 = d

x = 7 + 8

= 15