Which oil - producing country recently announced its

   By Interchanging the given two numbers which of the following equation will be correct?

1 and 6

In how many different ways can the letters of the word 'COMPUTER' be arranged in such a way that the vowels always come together?

Select the correct combination of mathematical signs that can sequentially replace the “@” sign and balance the following equation.

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

If ‘K’ means (÷), ‘L’ means (x), ‘M’ means (+), and ‘N’ means (-), then what is the value of the expression:

If % means +, @ means -, # means × and $ means ÷, then what is the value of : 26 % 40 @ 56 $ 7 # 2

If A denotes '+', B denotes ' X ', C denotes ' - ' and D denotes '÷', then what will come in place of '?' in the following equation?

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