Question

plzzzzzzzz solve fasttttttt find 11th question​

Answer 1

Step-by-step explanation:

5, (x - 2), 7 are in A.P

therefore (x - 2) - 5 = 7 - (x - 2) [ 3rd term - 2nd term = 2nd term - 1st term = d ]

=> x - 2 - 5 = 7 - x + 2

=> x - 7 = 9 - x

=> 2x = 9 + 7 = 16

therefore 2x = 16 => x = 8

Answer 2

Answer:

x = 8

Step-by-step explanation:

Let A.P be a,b,c.

So,

a = 5 , b = x-2 , c = 7

Now,

→ b = a+c/2

→ x-2 = 5+7/2

→ x-2 = 12/2

→ x = 6+2

→ x = 8