Study the given graph carefully to answer the question that follow:
Number of days taken by three carpenters to finish making one piece each of four different items of furniture
If Carpenter X and Carpenter Y were to make a chair together how many days would they take ?
If Carpenter X, Y and Z were to make a table together, how many days would they take?
What is the total number of days that Carpenter Z will take to make one piece each of all the four items together ?
For the following questions answer them individually
The speed of boat when travelling downstream is 32 km/hr whereas when travelling upstream it is 28 km/hr. What is the speed of the boat in still water ?
4 men can complete a piece of work in 2 days. 4 women can complete the same piece of work in 4 days whereas 5 children can complete the same piece of work in 4 days. If 2 men 4 women and 10 children work together in how many days can the work be completed ?