Question
Quantitative Aptitude Question on Geometry
If the outer radius of a metal pipe is 2.84 inches and the inner radius is 1.94 inches, what is the thickness of the pipe?
A
75 inch
B
80 inch
C
90 inch
D
95 inch
Answer
75 inch
Explanation
Solution
Just subtract the inner diameter from the outer diameter. 2.84-1.94 = .90
The correct answer is (C): 90 inch