Answer / syed abdul kadhir

For example span will be 10' * 10'
Sheetsize 3'*2'
X axis 3*3=9'+1 feet plank throughout 10'=9+1=10'
Y axis 2*5=10'
Total number of sheet will be 15 and 1feet plank (10')
Prob will be provide in each 2ft
No of probs is 15.

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