The common name of hydrogen peroxide

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

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

252 @ 28 @ 11 @ 5 @ 22 = 42

If 22 – 16 means 352, 450 + 50 means 9, 9 ÷ 3 means 12, 11 x 8 means 3, then ' 280 – 5 x 240 ÷ 450 + 9 x 26' = ?

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

Select the correct combination of mathematical signs to sequentially replace the * signs and balance the given equation.

65 * 45 * 25 * 5 * 35 * 60

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

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

If ‘ × ’ means ‘ + ’. ‘+’ means ‘÷’, ‘-’ means ‘×’ and ‘÷’ means ‘-’, then 9 × 8 – 5 + 40 ÷ 3 = (?)