Height of the tree after 5 years would be: 16 meters.
Starting height = 10 m
Rate of growth = 10 cm per month
Convert 10 cm per month to meter per year.
10 cm / 1 month
10 cm = 0.1 m
1 year = 12 months
0.1 × 12 = 1.2
1.2 meters per year
Duration: 5 years
5 × 1.2 = 6
6 meters in 5 years
6 + 10 = 16
Thus, the height of the tree after 5 years if its present height is 10m, is 16 meters.