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

Select the correct combination of mathematical signs to replace the * signs and to balance the given equation.
 230 * 1 * 5 * 16 * 41 * 21

Select the correct combination of mathematical signs to sequentially replace the * signs and to balance the given equation.
 16 * 4 * 8 * 10 * 2 *24

By interchanging the given two signs which of the following equation will be not correct?
 –   and ÷

If ‘+’ means ‘÷’, ‘ ̶ ’ means ‘+’, ‘×’ means ‘ ̶ ’ and ‘÷’ means ‘×’, what will be the value of the following expression?
 [{(32 × 20) - (2 ÷ 3)} + (2 - 4)] ÷ 3

Which two numbers from amongst the given options should be interchanged to make the given equation correct?
 248 ÷ 4 + 184 ÷ ( 4 × 6 – 2 × 8) = 77

Select the correct combination of mathematical signs to sequentially replace the * signs and to balance the given equation.
 25 * 5 * 10 * 2 * 13

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

If 7 × 8 = 49, 4 × 4 = 12 and 6 × 4 = 18, what will 9 × 6 be?