Consider the given question and decide which of the following statement is sufficient to answer the question.
What are the values of p, q and r?
Statements:
1. (p + q)2 = 16
2. p – q = 4; r = 2p1
Neither 1 nor 2 is sufficient to answer the question.
2
Only 1 is sufficient to answer the question
3
Only 2 is sufficient to answer the question
4
Both 1 and 2 together are sufficient to answer the question.