Question

A tree was 17 feet tall when it was planted. It grew 8 times that height in 15 years.

How much taller is the tree than when it was planted?

A. 119 feet
B. 136 feet
C. 247 feet
D. 255 feet

Answer 1

A. 119

Explanation:

In 15 years, the tree grew to a height of 8 x 17 = 136 feet. Since it was planted at a height of 17 feet, the tree grew 136-17=119 feet.

Answer 2

A. 119 feet

Explanation:

the height of tree right now =

17 × 8 = 136 feet

the differences = 136 -17 = 119 feet