The length of a rectangle is increased by 60%.

The length of a rectangle is increased by 60%.

By what % would the width have to be decreased to

maintain the same area? steps....
This question is related to TCS Interview

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SpandanaMohan

  • May 23rd, 2008
 

Let the length be L and breadth be B...therefore initial area ia A=L*B
Now if we increase length by 60%, the new length will be L+3L/5...
Let the decreased amount of breadth be x...
since the area is same in both the cases, we can equate the area as
 L*B=8L/5(B-x)...Solving this we get x as 3/8...which is nothing but 37.5%
Therefore the breadth shld be decreased by 37.5%

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