In a factory, yield drops 10% each stage: cutting, sewing, finishing. To ship 729 flawless shirts, how many starting materials (in shirts) are needed?

In a factory, yield drops 10% each stage: cutting, sewing, finishing. To ship 729 flawless shirts, how many starting materials (in shirts) are needed?

  1. a) 867
  2. b) 1000
  3. c) 1458
  4. d) 1800

From the BB Assistant Director (General) July 2026 – Preliminary exam, question 59 of 100.

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