MathDB

7

Part of 2020 Malaysia IMONST 1

Problems(1)

Malaysia IMONST 1 Senior P7

Source:

9/18/2020
Three brothers own a painting company called Tiga Abdul Enterprise. They are hired to paint a building. Wahab says, “I can paint this building in 33 months if I work alone”. Wahib says, “I can paint this building in 22 months if I work alone”. Wahub says, “I can paint this building in k months if I work alone”. If they work together, they can finish painting the building in 11 month only. What is kk?
Time and Work