CBSE Class 10 Answered
Volume and surface area
Asked by | 19 Feb, 2010, 06:53: PM
Expert Answer
V = Volume of cuboid = LBH
L after 100% increase will be 2 times L.
Also, B is now, 2.5B, H is now 3.5.
{If a quantity is changed by ±X%, then the new value becomes 1±(X/100) times initial value}
V' = L'B'H'
= (2L)(2.5B)(3.5H) = 17.5LBH = 17.5V
Since the changed volume is 17.5 times the initial,
therefore, 17.5 - 1 = 16.5, and the percentage change is 1650%
Regards,
Team,
TopperLearning.
Answered by | 20 Feb, 2010, 05:36: AM
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