Question

A total of four teen board are stacked on the top of each other and the thickness of each board is 3 2\5 CM. How high is the stack?

Answer 1

Answer:

$13 \frac{3}{5} cm$

Step-by-step explanation:

total no of boards = 4

thickness of each =

$3 \frac{2}{5}$

$= \frac{ (5 \times 3 + 2)}{5} = \frac{17}{5} cm$

Hence, thickness of stack is =

$= 4 \times \frac{17}{5} = \frac{68}{5} = 13 \frac{3}{5} cm$

Answer provided by GauthMath.