What number should replace the question mark?
Answer & explanation
Correct answer: option 3
The correct answer is Option (3) → 45
In each figure, the product of the two corner numbers minus the number at the top gives the number in the middle.
First figure: \(12\times6-9=72-9=63\)
Second figure: \(15\times5-19=75-19=56\)
Third figure: \(13\times4-7=52-7=45\)