Question

If 2x, x + 10, 3x + 2 are in A.P., then x is equal to ______.

Options

• 0

• 2

• 4

• 6

Answer 1

If 2x, x + 10, 3x + 2 are in A.P., then x is equal to 6.

Explanation:-

Since 2x, x + 10 and 3x + 2 are in A.P.

∴ 2(x + 10) = 2x + (3x + 2)

⇒ 2x + 20 - 5x + 2

⇒ 2x - 5x = 2 - 20

⇒ 3x = 18

⇒ x = 6