Solved IB ACIO Question
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Q · Missing Numbermedium · 45s
Find the missing number:100, 90, 80, 70, ?
TopicMissing Number
Question Typemultiple choice
Difficultymedium
Marking+1 / −0.25
Test Duration30 min
← Previous questionQ 38 / 38
Step-by-Step Solution
The complete worked solution.
Every step explained - no skipped algebra.
Decreasing by 10 each time; next is 60.
Final Answer: Option C - 60