（註：A/B即是A over B）
1.
When Uncle Chan passed away, he left 39 cows to his three sons. According to his will, the first son, the second son and the third son should share the number of cows in the radio below:
1/2:1/3:1/4.
How many cows could each son share according to the will?
更新1:
2. Three borthers shared $740 000 left by their deceased father. If the share of the second son was 4/5 that of the first son, and the share of the first son was 1.5 times that of the third son, find the amount each of them got.
更新2:
哇！咁快有人答o左啦……= ="
更新3:
哇！咁快有人答o左啦……= ="
