### SBI Clerk 2shift 19 Aug 2007 Question 181

Instructions

These questions are based on the following information :
‘A @ B ‘ means ‘A is added to B’.
‘A * B’ means ‘A is multiplied by B’
‘A # B’ means ‘A is divided By B ‘
‘A \$ B’ means ‘B is subtracted from A’
In each question, some information is given. You have to find out which expression correctly represents the statement.

Question 181

# Total age of 12 boys is ‘X and the total age of 13 girls is ‘Y. What is the average age (A) of all the boys and girls together ?

Solution

average age  = $$\frac{Sum of Elements}{Number of elements}$$

here sum of age = X@Y

and Number of Elements = 25

So Avg = X@Y#25