If ‘+’ means ‘×’, ‘×’ means ‘+’ and ‘–’ means ‘+’, what is the value of 6 + 7 + 5 – 40?
Answer & explanation
Correct answer: option 1
The correct answer is Option (1) → 250
Replace every sign by the sign it stands for, all at once, then work it out by BODMAS.
‘+’ becomes ‘×’ and ‘–’ becomes ‘+’: 6 × 7 × 5 + 40
\(6\times7=42\)
\(42\times5=210\)
\(210+40=250\)