Find the length of the side of a regular octagon which

Select the correct combination of the mathematical signs to replace the ‘@’ symbols in the below equation and thereby balance it:

Which two signs should be interchanged to make the following equation correct?

7 × 6 ÷ 3 – 6 = 40 + 20

What will be the value of expression if the numbers (13) and (91) are interchanged?

48 - 35 + 13 ÷ 91 + 4 × 8

Statements:

B ≥ K ≤ C; Q > K > X; M = Q < P

Conclusions:

I. P > X

II. C ≥ M

Select the correct combination of mathematical signs that can sequentially replace the $ signs and make the equation correct.

Which of the following interchange of sign would make the given equation correct?

45 × 9 + 5 ÷ 4 = 25

Select the correct combination of mathematical signs that can sequentially replace the ‘*’ signs and balance the given equation.

The given equation has been solved on the basis of a certain rule. Find the correct answer for the unsolved equation on that basis: