Posted by Dipti on .
Length of rectanngle is 1 cm more than width. If length of rectangle is doubled the area is increased by 30cm2. find dimensions of original rectangle.

Algebra 
Steve,
if the length and width are x,y respectively, then
x = y+1
2xy = xy+30
xy=30
x=6,y=5
check:
xy = 6*5 = 30
2xy = 12*5 = 60 = 30+30