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

. If, 4 × 3 = 14; 5 × 4 = 18; 6 × 5 = 22, then find the value of 7 × 6.

After interchanging the given two numbers and two signs what will be the values of equation (I) and (II) respectively?
– and ×, 6 and 4
 I. 7 × 6 + 8 ÷ 2 – 4
 II. 4 – 7 × 6 + 8 ÷ 2

What will come in the place of ‘?’ in the following equation, if ‘+’ and ‘× ‘ are interchanged and also ‘5’ and ‘9’ are interchanged?
 3 + 9 – 6 × 5 ÷ 3 = ? 

By interchanging the given two signs and numbers which of the following equation will be correct?
 × and ÷, 7 and 9

If + means −, − means ×, × means ÷, and ÷ means +, what will be the value of the following expression?
 45 × 9 ÷ 12 – 5 + 3

Select the correct combination of mathematical signs to replace the * signs and to balance the given equation.
 91 * 15 * 5 * 18 * 37

By Interchanging the given two numbers which of the following equation will be not correct?
 3 and 4

What will come in the place of ‘?’ in the following equation, if ‘×’ and ‘ – ‘ are interchanged and also ‘+’ and ‘÷’ are interchanged?
 27 × 8 − 3 ÷ 4 + 2 = ?