‘A’ can do a piece of work in 20 days. ‘B’ can

If + denotes ÷, × denotes -, - denotes ×, and ÷ denotes +, what is the value of the following expression:

124 + 4 × 5 – 6 ÷ 6 + 3 = ?

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

'!' means '÷', '$' means ' X ', '#' means '+' and '&' means '-' then what would be the value of the expression given below?

If '+' means '–', '–' means '×', '÷' means '+' and '×' means '÷', then ' 30 – 12 + 20 × 10 ÷ 10 ' = (?)

If A # B means A + B, A $ B means A - B, A % B means A X B and A & B means A ÷ B, then what is the value of '154 & 22 % 5 $ 68 # 84'?

If 'A' stands for '-', 'B' stands for '×', 'C' stands for '+', and 'D' stands for '÷', then what is the value of the following expression.

Statements:

V ≤ P < S = B; T < U ≤ I = B; N < J < T

Conclusions:

I. J > P

II. N < S

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

75 – 18 × 80 ÷ 16 + 40 = 125

Select the correct combination of mathematical signs that can sequentially replace the '$' signs and balance the given equation.

6 $ 42 $ 14 $ 6 $ 40 = -16

If 34 – 28 means 952, 544 + 8 means 68, 20 ÷ 5 means 25, 20 x 10 means 10, then 375 – 11 x 270 ÷ 550 + 11 x 35 = ?