Find the odd one out using the square-number pattern: for three of the…
2025
Find the odd one out using the square-number pattern: for three of the numbers, adding 5 gives a perfect square.
Answer: C. 672 — Correct answer: 672 Check the pattern given in the stem: add 5 and see whether the result is a perfect square. 436 + 5 = 441 = 21² 524 + 5 = 529 = 23² 779 + 5…
- A.
436
- B.
524
- C.
672
- D.
779
Attempted by 374 students.
Show answer & explanation
Correct answer: C
Correct answer: 672
Check the pattern given in the stem: add 5 and see whether the result is a perfect square.
436 + 5 = 441 = 21²
524 + 5 = 529 = 23²
779 + 5 = 784 = 28²
672 + 5 = 677, which is not a perfect square
Therefore, 672 is the odd one out under the square-number pattern. The stem now states this basis clearly so parity alone is not used as the comparison rule.
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