Correct option is A
The initial length is 2 feet now
Since there is a 5% growth
After first-year length will be = (105/100) × 2 = 2.1 cm
After the Second year length will be = 2.1 × (105/100) = 2.205 cm
After the Second year length will be = 2.205 × (105/100) = 2.31525 cm
It will increase by .31525 cm in three years.
In the Second case
CP = 40
SP = 56
Profit = 40%
SP = 140 % × 40 = 56