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Two numbers are respectively 25% and 40% more than a third number. The ratio of the first to the second is:

  • A.5 : 7
  • B.5 : 8
  • C.25 : 32
  • D.25 : 28

Answer: D

Take the third number as 100.

\[ \text{first} = 125, \qquad \text{second} = 140 \]

\[ 125 : 140 = 25 : 28 \]

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