Answer:252
Step-by-step explanation:
Previous length=10
Previous width=20
20% of previous length
20% of 10
20/100 x 10
(20 x 10)/100
200/100=2
Previous length increased by 20%=10+2=12
New length=12
5% of previous width
5% of 20
5/100 x 20
(5x20)/100
100/100=1
Previous width increased by 5%=20+1=21
new width=21
Area of enlarged rectangle=new length x new width
Area of enlarged rectangle=12 x 21
Area of enlarged rectangle=252