Answer: 20
These people start calculating from left to right without following order of operations:
9 + 3 = 12
12 × 4 = 48
48 – 11 = 37 → Incorrect logic.
Answer: 1
They calculate 3 × 4 = 12, then do 11 – 12 = -1, and then 9 + (-1) = 8 → Wrong sequence.
Answer: 5
Same mistake as before: 9 + 3 = 12, 12 × 4 = 48, 48 – 11 = 37 → Incorrect.
Answer: 23
They did multiplication first but added instead of subtracting at the end:
3 × 4 = 12
9 + 12 = 21
Then they mistakenly did 21 + 11 = 32 instead of subtracting → Wrong operation used.
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