242 AHITHMETIC. 



36. In an orchard of fruit trees, ~ of them bear apples, 

 •J pears, ~ plumbs, and 50 of them cherries : how many 

 trees are there in all ? Ans. 600. 



37. A can do a piece of work alone in 10 days, and B 

 in 13 ; if both be set about it together, in what time will 

 it be finished ? Ans. 5-^f days. 



38. A, B and C are to share loooool. in the proportion 

 of y, -^ and -J respectively ; but C's part being lost by his 

 death, it is required to divide the whole sum properly be- 

 tween the other two. 



Ans. A's part is 57142—1, and B's 42^5.77x7- 



&ND OJP ARITIIM£riCr> 



