Direction: Some equations have been solved on the basis of certain system. Find the correct answer for the unsolved equation on that basis.

Q:

If 10 – 3 = 12, 12 – 4 = 13, 14 – 5 = 14, then 16 – 6 = ?

• 1
  10
• 2
  15
• 3
  16
• 4
  18