Sodium deficiency can occur in which of the following 

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

How many meaningful four-letter words can be formed using the 1st, 3rd, 7th, and 8th letters of the word 'PERIPHERAL'?

Which one of the given mathematical operations will result in 291?

In the following question, select the related number from the given alternatives.

22 : 330 :: 28 : ?

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

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

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

9 % 14 % 9 % 90 % 42 % 15