If 13x + 1 < 2z, and z + 3 = 5y2, then
Explanation:
We have, 13x + 1 < 2z … (i) z + 3 = 5y2 …(ii) From (i) and (ii), we get, 13x + 1 < 2(5y2 – 3) ∴ 13x + 1 < 10y2 – 6 ∴ x < (10y2 – 7)/13 For y = 1, we get x < 3/13 ∴ x < y For y = 2, we get x < 33/13 ∴ x could be greater than or less than y. ∴ None of the given options are necessarily true. Hence, option (d).
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