Question

x + 9, 10 and 4 are in GP. The value of x is ______.

विकल्प

• 16

• 8

• −16

• 0

Answer 1

x + 9, 10 and 4 are in GP. The value of x is 16.

Explanation:

Given,

x + 9, 10 and 4 are in G.P.

∴ `(x + 9)/10 = 4/10`

⇒ 4(x + 9) = 10 × 10

⇒ 4x + 36 = 100

⇒ 4x = 100 − 36

⇒ 4x = 64

⇒ x = `64/4`

x = 16