Question

If carpenter X and carpenter Y were to make a chair together, how many days would they take?

• A. 1 day
• B. 4 days
• C. 3 days
• D. 2 days
• E. None of these

Answer 1

The correct option is E None of these

Part of the chair prepared by X and Y in 1 day,
$=\frac{1}{2}+\frac{1}{4}=\frac{2+1}{4}=\frac{3}{4}$
Hence, 1 chair will be prepared in $\frac{4}{3}$ days.