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For a classroom display, two decimals are needed so that one is less than both and 1.5, and the other is greater than both. Which pair works?

Class 9Real Numbers on the Number LineNumber Systems
  • A1.4 and 1.6
  • B1.45 and 1.55
  • C1.42 and 1.49
  • D1.41 and 1.43

Step-by-Step Solution

about 1.414 and 1.5. We need lower < 1.414 and upper > 1.5. 1.4 < 1.414 and 1.6 > 1.5, so 1.4 and 1.6 work. The other lower values are above 1.414 or the upper values below 1.5.
Answer: A) 1.4 and 1.6

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