Question 6837 – UGC NET CS 2016 Aug- paper-3

Suppose database table T1(P, R) currently has tuples {(10, 5), (15, 8), (25, 6)} and table T2 (A, C) currently has {(10, 6), (25, 3), (10, 5)}. Consider the following three relational algebra queries RA1, RA2 and RA3:

The number of tuples in the resulting table of RA1, RA2 and RA3 are given by:

Correct Answer: D