SSC CHSL 2025 · PYQ · Number System · medium
How many perfect squares lie between 10,000 and 20,000 (inclusive)?
Answer
The correct answer is B: 42. √10000 = 100 and √20000 ≈ 141.4, so perfect squares are from 100² to 141². Count = 141 − 100 + 1 = 42.
- A.32
- B.42✓ Correct
- C.52
- D.62
√10000 = 100 and √20000 ≈ 141.4, so perfect squares are from 100² to 141². Count = 141 − 100 + 1 = 42.
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