question_answer

A cylindrical metallic pipe is 14 cm long. The difference between the outer and inner curved surface area is 44\[\mathbf{c}{{\mathbf{m}}^{\mathbf{2}}}\]. If the sum of outer and is 1.5 cm, then find the ratio of outer and inner radius of the respectively.

A) 2 : 1                 

B) 1 : 2         

C) 1 : 3       

D)        2 : 3

E) None of these