The width of a rectangle is 10 meter and its area is 150 square meter. If length of the rectangle is increased then its new area is 4/3 times of the original area. What is the new perimeter of the rectangle?	Choose one.
A) 48 m
B) 52 m
C) 54 m
D) 60 m
E) None of these
Let length of new rectangle be x m   Then x×10=150×4/3=200 or, x=20 m   Hence new perimeter=2(10+20)=60 m   ANSWER:60 m
<result>D</result>
The width of a rectangle is 10 meter and its area is 150 square meter. If length of the rectangle is increased then its new area is 4/3 times of the original area. What is the new perimeter of the rectangle?