Question

answer it in stepwise and urgent​

Answer 1

Here is your answer.

Answer is option D . ( 81 cm )

Step by step :)

For first year tree will increase 1/8th of today's height .

$= 64 \times \frac{1}{8} \\ = 8cm$

First year tree increases 8 cm.

and now height is

$= 64 + 8 = 72cm$

For second year its increase 1/8th of 72cm

$= 72 \times \frac{1}{8 } \\ = 9$

and heights became

$= 72 + 9 = 81cm$

Hope it's helps.

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