4x + 12 = 36 হলে 2x + 3 = কত ?

4x + 12 = 36 হলে 2x + 3 = কত ?

A 3

B 7

C 15

D 21

Solution

Correct Answer: Option C

দেয়া আছে, 4x + 12 = 36

=> 4x = 36 - 12 = 24

∴ 2x = 24/2 = 12

অতএব, 2x + 3 = 12 + 3 = 15