The Age of Exploration: Chapter 4, Exercise 2 — Possible Solution
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CORRECTION
About 270 people set out, and 18 survivors plus three Moluccans returned on
the Victoria. But the source says other crew members were detained in Cape
Verde or returned separately, and it gives no totals for the dead, so
"only 18 survived" is unsupported.

REWRITE
"About 270 crew set out; the Victoria returned with 18 survivors and three
Moluccans, while others were detained in Cape Verde or returned separately."

CAUTION
I did not calculate a death toll.