Question

If log (2x + 5) = 2, then x is equal to ______.

विकल्प

• 40

• 42.5

• 47.5

• 48

Answer 1

If log (2x + 5) = 2, then x is equal to 47.5.

Explanation:

10² = 2x + 5 

⇒ 100 = 2x + 5

⇒ 2x = 95

⇒ x = 47.5