30 men can complete a piece of work in 48 days. ‘x’

If ‘A’ means (÷), ‘B’ means (×), ‘C’ means (+), and ‘D’ means (-), then what is the value of the expression:

By interchanging the given two signs and numbers which of the following equation will be correct?

× and +, 6 and 4

Which one of the given mathematical operations will result in 429?

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

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

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

62 – 14 × 75 ÷ 15 + 50 = 82

157 + 256 – 88 ÷ 8 × 4 = 117

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

620 + 75 ÷ 8 × 35 – 44 × 5 + 15 = 583

Which among the given operators should replace the “%” (in the same order) in the given expression below:

7 % 12 % 7 % 38 % 47 % 8