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In a two-stage wire drawing operation, the fractional reduction (ratio of change in cross-sectional area to initial cross-sectional area) in the first stage is $0.4$. The fractional reduction in the second stage is $0.3$. The overall fractional reduction is

  1. $0.24$
  2. $0.58$
  3. $0.60$
  4. $1.00$
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