Compound Interest Practice Test 1

Question : 22 of 40

Marks: +1, -0

A tree was planted 2 years ago, its present height is 64 cm. With proper nutrition, it starts growing at a rate of 50% per annum. Calculate the time taken to reach its maximum height, i.e., 729 cm.

3 years
2 years
7 years
6 years
5 years

Validate

Solution:

729 =64(1+50/100)^t

729/64=(3/2)^t

(3/2)^6=(3/2)^t

So, time taken = 6 years.

Go to Question:

Prev Question

Next Question