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Three of the five positive integers p, q, r, s, t are even and two of them are odd (not necessarily in order). Consider the following: 1. p + q + r – s – t is definitely even. 2. 2p + q + 2r – 2s + t is definitely odd. Which of the above statements is/are correct?
- 1 only
- 2 only
- Both 1 and 2
- Neither 1 nor 2
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