निम्नलिखित 

If '#' means ' - ', '@' means '+', '$' means '÷' and '&' means ' X ', then what is the value of the following expression?

72 # 91 $ 7 & 4 @ 18

In the following question, which mathematical operators can be used so that the expression will become correct?

9 * 6 * 28 * 4 * 30

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

8 * 12 * 7 * 5 * 3 * 201

If the ‘-’ and ‘×’ are interchanged, What will be the value of the following equation?

34 × 22 + 192 ÷ 12 – 8

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

48 - 35 + 13 ÷ 91 + 4 × 8

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

11 – 22 + 30 × 25 ÷ 5 = 267

Which two digits and signs can be interchanged so as to balance the given equation?

406- 102 + 128 X 5 ÷ 58 = 545