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How many perfect squares between 1 and 500 end in the digit 5?

Competition practiceNumber & Arithmetic
  • A1
  • B2
  • C3
  • D5

Step-by-Step Solution

A square ends in 5 only when its root ends in 5. The candidates are and , but 625 is beyond 500. So exactly 2 such squares lie in the range.
Answer: B) 2

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