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A tree increases annually by 1/8 th of its height.
Question 1:
A tree increases annually by 1/8 th 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
Feedback
Increase% = (1/8) x 100% = 12.5%
Height after 2 years =64 x {1 +25/(2 x 100)}2
= 64 x 9/8 x 9/8
= 81 cm
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