please answer to this questions 9question is not there
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7. number of Plank = volume of wooden block/ volume of one plank
so , no. of plank = 600×15×40/200×2.5×4
=180
8. volume of new cube = volume of 1st cube + volume of 2nd cube + volume of 3rd cube
= (6)³+ (8)³ + (10)³
= 216+512+1000
= 1728 cm³
so , no. of plank = 600×15×40/200×2.5×4
=180
8. volume of new cube = volume of 1st cube + volume of 2nd cube + volume of 3rd cube
= (6)³+ (8)³ + (10)³
= 216+512+1000
= 1728 cm³
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