Teaching BPSC 4.0 बिहार उच्च माध्यमिक शिक्षक भर्ती (PGT) Mock Test Mathematics Sets Set Theory and types of Sets
If A = {x ∶ x is a letter in word BELOW}, B = {x ∶ x is a letter in word WOOL} and C = A – B, then the number of subsets of C is
1
1
2
2
3
3
4
More than one of the above
5
None of the above