Solved IB ACIO Question
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Q · Mathematical Operationsmedium · 45s
If + means ×, × means –, ÷ means + and – means ÷, then calculate: 175 – 25 ÷ 5 + 20 × 3 + 10?
TopicMathematical Operations
Question Typemultiple choice
Difficultymedium
Marking+1 / −0.25
Test Duration30 min
Step-by-Step Solution
The complete worked solution.
Every step explained — no skipped algebra.
Replace operators: + with ×, × with –, ÷ with +, – with ÷. Expression: 175 ÷ 25 + 5 × 20 – 3 × 10. Calculate: 175 ÷ 25 = 7; 5 × 20 = 100; 3 × 10 = 30. Total = 7 + 100 – 30 = 77.
Final Answer: Option A — 77