A nail is driven into the trunk of a 30 years old tree at a point l in above the soil level. The tree grows in height at the rate of 0.5m a year. After three years, the nail will be
A. 1m above the soil
B. 1.5 m above the soil
C. 2 in above the soil
D. 2.5 m above the soil
Answer:A
A nail is driven into the trunk of a 30 years old tree at a point l in above the soil level. The tree grows in height at the rate of 0.5m a year. After three years, the nail will be
A. 1m above the soil B. 1.5 m above the soil C. 2 in above the soil D. 2.5 m above the soil