Question

A tree increases annually by one - fourth of its height. What will be the height of the tree after 3 years, if it stands today at 64 cm height?

A 132 cm Correct Answer Incorrect Answer
B 112 cm Correct Answer Incorrect Answer
C 144 cm Correct Answer Incorrect Answer
D 125 cm Correct Answer Incorrect Answer

Solution

Height of the tree after 3 years = Present height of the tree (1 + 1/4 )³ ⇒ 64(1 + 1/4 )³ ⇒ (64 × 5 × 5 × 5)/(4 × 4 × 4) = 125 cm.

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