Compound Interest Practice Test 2

Question : 29 of 40

Marks: +1, -0

A teak tree was planted three years ago. The rate of its growth is 30% per annum. If at present, the height of the tree is 670 cm, what was the height of it when it was planted?

305 cm
520 cm
360 cm
405 cm

Validate

Solution:

670=P(1+30/100)^3

670=P(130/100)^3

P=670×(100/130)^3

= 304.96 ≈ 305 cm

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