math
posted by qwertyuiop on .
a square has a length of 5 inches. Then it is increased by 20%. Then the same square has a width of 10 inches and it is increased by 10%. How Many Percents has the area of the square been increased By?
Thanx 4 your Help

old area = 50
new length = 5+1 = 6
new width = 10+1 = 11
new area = 66
percent = 100 (6650) /50