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Between the rationals 0.7 and 0.8, a student must write one irrational number.
Which is a valid choice?

Class 10Irrational NumbersNumber Systems
  • A0.7070070007... (non-repeating)
  • B0.75
  • C0.777... (7 repeating)
  • D0.72

Step-by-Step Solution

0.7070070007... is non-terminating non-recurring and lies between 0.7 and 0.8, so it is irrational. The others are rational.
Answer: A) 0.7070070007... (non-repeating)

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