Question

If A can paint a room in 8 hours and B can paint the same room in 10 hours, how much of the room remains unpainted if they work together for 3 hours?

• A. \(\frac{2}{35}\)
• B. \(\frac{1}{3}\)
• C. \(\frac{13}{35}\)
• D. \(\frac{13}{40}\)

Answer 1

The Correct Option is D

The correct option is (D): \(\frac{13}{40}\)