Answer:
Step-by-step explanation:
2(l+b)=16
Also it is given that l=2b+2
2(2b+2+b)=16
3b+2=8
b=2metre
l=2(2)+2
l=6metre
500 grams is 20 percent of 2.5 kg
500*100 = 50,000
50,000/2500=20