CTET 2 Math and Science Feb 2015 Paper

Question : 34 of 120

Marks: +1, -0

If each edge of a solid cube is increased by 150%, the percentage increase in the surface area is

Solution:

Percentage increase in the surface area

=x+y+\;\;{xy}/{100}

=150+150+\;\;{150×150}/{100}

=300+225

=525%

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