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 the correct choice from the following answers
A) 48 m
B) 52 m
C) 54 m
D) 60 m
E) none of these

Rationale: 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 : d
Answer: D