Question : Directions: Some equations are solved on the same basis, find out the correct answer for the unsolved equation.
If 2 × 16 = 8, 8 × 8 = 1, 6 × 12 = 2, then 12 × 144 = ?

Option 1: 11

Option 2: 12

Option 3: 16

Option 4: 24

Question : Directions: Some equations have been solved based on certain systems. Find out the correct answer for the unsolved equation on that basis.
If 72 × 19 = 23, 13 × 48 = 35 and 16 × 43 = 18, then 39 × 22 = ?

Option 1: 31

Option 2: 51

Option 3: 21

Option 4: 27

Question : Directions: Some equations are solved on the same basis, find out the correct answer for the unsolved equation.
If 10 – 3 = 12, 12 – 4 = 13, 14 – 5 = 14, then 16 – 6 = ?

Option 1: 10

Option 2: 15

Option 3: 16

Option 4: 18

Question : Directions: By interchanging the given two numbers (not digits) which of the following equations will not be correct?
4 and 6

Option 1: 2 + 6 × 5 – 4 = 16

Option 2: 4 + 5 – 6 = 7

Option 3: 6 ÷ 2 – 4 × 5 = –28

Option 4: 6 × 3 – 4 ÷ 1 = 3

Question : Directions: In this question, some equations are solved based on a certain system. On the same basis, find out the correct answer out of the four alternatives for the unsolved equation.
53 – 34 = 5334
65 – 46 = 6456
75 – 24 = ?

Option 1: 7542

Option 2: 7524

Option 3: 7452

Option 4: 7254