Skip to content
This is a question from SGC Common Entrance Examination without answers!
Lets say the length is 3cm and the width is 2cm. So the area is 2 x 3 = 6cm squared.
If both sides are increased by 50% then the length is 4.5cm and the width is 3cm. 3 x 4.5= 13.5cm squared
2.25*100 = 225.
13.5cm squared is 225% of 6cm squared.
This works with any number. Try it!
Thanks guys, I didn't know the theory works on all numbers.