A tree increases annually by 1/8 of its height. By how much will it increase after 2 years, if it stands today 64 cm high?

A tree increases annually by 1/8 of its height. By how much will it increase after 2 years, if it stands today 64 cm high?

A 72 cm

B 74 cm

C 75 cm

D 81 cm

Solution

Correct Answer: Option D

1st year = 64/8 = 8 cm

Total height after 1 year = 64+8 = 72 cm

2nd year = 72/8 = 9 cm

Total height after 2 years = 72+9 = 81 cm