CAT Quant Practice Problems

Question: A positive whole number M less than 100 is represented in base 2 notation, base 3 notation, and base 5 notation. It is found that in all three cases the last digit is 1, while in exactly two out of the three cases the leading digit is 1. Then M equals
  1. 31
  2. 63
  3. 75
  4. 91

Correct Option:4

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CAT Quant Practice Problems
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