Discussion :: Area
-
The length of a rectangle is halved, while its breadth is tripled. What is the percentage change in area?
Whatsapp
Facebook
Answer : Option B
Explanation :
Let original length = x and original breadth = y.
Original area = xy.
New length =\( \frac { X } { 2 } \)
New breadth =3Y
New area =\([ \frac { X } { 2 } \)x3Y]=\( \frac { 3 } { 2 } \)XY
Increase % =[\( \frac {1 } { 2 } \)xy x \(\frac { 1 } { XY } \) x 100]%= 50%
Be The First To Comment