Consider the following relation :

STUD

Class

Age

Sname

4

3

4

4

2

9

8

11

10

6

Vikas

Shreya

Megha

Rajan

Ritu

Let us suppose ‘x’ is a tuple variable ranging over ‘STUD’ relation. Following TRC expression is given:

What are the number of tuples that are valid according to the above TRC query:_____

Enter numerical value using the virtual keypad. Round off where necessary.