If the length of a rectangle is increased by
2 cm and its width is reduced by 6 cm, its
area will decrease by 25 cm².
If, instead, the length of the original rectangle
is increased by 3 cm and its width is increased
by 6 cm, its area will increase by 114 cm².
Work out the area of the original rectangle.
Give your answer as a decimal to 2 d.p.