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A first guess of \( 85 \) t gives a computed weight of \( 91 \) t, and \( 91 \) gives \( 90.8 \). This behaviour shows the loop is

  • A.Oscillating without limit
  • B.Independent of the guess
  • C.Converging
  • D.Diverging

Answer: C

Correct answer: Converging

The successive outputs are 91 and then 90.8 - each iteration changes the answer by less than the one before, so the sequence is settling on a fixed point. That is convergence, and it means the design closes: a weight exists at which the fuel needed and the weight assumed are consistent. Oscillation would show the values alternating about a value, and divergence would show them growing without limit, which signals a mission the assumed technology cannot achieve.

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