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The product of the first 50 odd numbers, … × 99, is divisible by which highest power of 5?

Competition practiceNumber System, HCF & LCM
  • A24
  • B12
  • C10
  • D22

Step-by-Step Solution

Odd multiples of 5 up to 99: 5, 15, …, 95 (10 of them); 25 and 75 give one extra 5 each. Total .
Answer: B) 12

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