If the two signs, '+ and ÷ ' are interchanged, which of the following equations will be correct?

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

2 × 4 × 6 = 4; 9 × 3 × 7 = 13; 4 × 7 × 6 = 3; 9 × 7 × 8 =?

Select the correct combination of mathematical signs to replace the * signs and balance the given equation.
 21 * 4 * 156 * 13 * 11 = 83

Select the correct combination of mathematical signs to sequentially replace the * signs and to balance the given equation.
 25 * 5 * 10 * 2 * 8 * 11

Which of the following interchanges in signs and numbers will make the given equation correct?

8 x 9 + 2 = 74

Select the correct combination of mathematical signs to sequentially replace the # signs and to balance the given equation.
 [{(44 # 38) # (2 # 5)} # (4 # 2)] # 5 # 10

Select the correct combination of mathematical signs to sequentially replace the * signs and to balance the given equation.
 25 * 2 * 220 * 11 * 43

Which of the following interchange of numbers and mathematical signs would make the given equation correct?
72 ÷ 8 × 9 − 36 + 20 = 80