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.
 25 * 2 * 220 * 11 * 43

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

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 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 balance the given equation.
 65 * 45 * 25 * 5 * 35 * 60

If the signs – and ÷ are interchanged, then which of the following equations would be correct?

Which of the following symbols should be inserted in place of question mark (?) respectively (in the same order from left to right) in order to complete the given expression in such a manner that ‘U > S’, ‘Q < T’ and ‘S ≤ N’ definitely holds true?
 U > T ? D ≥ S ? Q ? N