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If ‘÷’ means ‘-’, ‘-’ mean ‘+’, ‘+’ means ‘×’ and ‘×’ means ‘÷’, compute the value of the expression:

If '&' means '+', '*' means '-', '^' means 'X' and '!' means '÷', then what is the value of the following expression?

15 ^ 4 * 10 & 32 ! 8

If A # B means A - B, A @ B means A ÷ B, A * B means A + B and A % B means A X B, then what is the value of ‘140 @ 28 * 22 % 4 # 30?

Statements:

B ≥ K ≤ C; Q > K > X; M = Q < P

Conclusions:

I. P > X

II. C ≥ M

If ‘÷’ means ‘-’, ‘-’ mean ‘+’, ‘+’ means ‘×’ and ‘×’ means ‘÷’, compute the value of the expression:

A toy is sold for Rs. 800 at 60% profit when profit is calculated on selling price. Find the profit% on cost price?

Select the correct sequence of mathematical signs to replace the ‘@’ signs so as to balance the given equation.

252 @ 28 @ 11 @ 5 @ 22 = 42

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