A total of 25 boards are stacked I ...
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A total of 25 boards are stacked I on the top of each other. The Thickness of each board is 23 cm How high is the stack 2

11th - 12th Class
Maths
Solution
148
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( begin{aligned} 25 times 2 frac{3}{4} &=25 times frac{11}{4} &=frac{275}{4} mathrm{cm} &=68 frac{3}{4} mathrm{cm} end{aligned} )
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