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Geeta thinks of two numbers whose sum is 73 and whose difference is 17. What is the smaller number?

Competition practiceNumber System, HCF & LCM
  • A28
  • B45
  • C56
  • D30

Step-by-Step Solution

Smaller = (sum − difference)/2 = (73 − 17)/2 = 28. Check: 28 + 45 = 73 and 45 − 28 = 17.
Answer: A) 28

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