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If 15% of a number is 45, then 35% of the same number is:

  • A.95
  • B.100
  • C.105
  • D.115

Answer: C

From \(0.15x = 45\) we get \(x = 300\), and 35% of 300 is 105. Alternatively, scale directly: 35% is \(\dfrac{35}{15}\) times 15%, so the answer is \(45 \times \dfrac{7}{3} = 105\), which skips finding the number entirely.

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