A gardener is planting two types of trees. One type is seven feet tall and grows at a rate of 8 inches per year. The other type is four feet tall and its rate of the growth is 50% greater than the rate of the other tree. In how many years will the two grow to the same height?

A gardener is planting two type of trees. *Type A is three feet tall and graws at a rate of 14 inches per year. *Type B is five tall and grows at a rate of 9 inches per year. How many year will it take for these trees to grow to the same height?

A tree is growing so that, after t- years its height is increasing at a rate of 18/(sqrtt) cm per year. Assume that when t = 0 the height is 5 cm. (i) Find the height of the tree after 4 years. (ii) After how many years will the height be 149 cm ?

A tree grows at the rate of 0.5m per year. What will be the height of the board fixed at 1.5m above the base five years ago?

A tree grows at the rate of 0.5 m per year. What will be the height of board fixed at 1.5 m above the ground level five years ago?

A population grows at the rate of 8% per year. How long does it take for the population to double? Use differential equation for it.

A population grows at the rate of 8% per year. How long does it take for the population to double? Use differential equation for it.

Answer the followings questions (any ten) : A sum of money is doubled in 8 years at r% rate of compound interest per annum. At the same rate in how many years it will be four times of the sum?

A tree in each year grows 5CM less than it did in previous year.if it grew 1m in first year find in how many years it will have cease growing.also find its final height

Two moonflower vines are growing on a trellis in Mallory's backward. She bought the first vine when it was 11 inches long and found that it grows at a rate of 0.25 inches per day. Exactly 20 days later, Mallory bought the second vine, which started at 24 inches long and has a growth rate of 0.125 inches per day. How many days will Mallory have had the first vine when the lengths of the two vines are the same?