2012 · Q87
The sum of two numbers is 20 and their product is 75. What is the sum of their reciprocals?
Elementary MathematicsAlgebra
- A1/15
- B1/5
- C4/15
- D7/15
Explanation
(1/a)+(1/b) = (a+b)/ab = 20/75 = 4/15.
The sum of two numbers is 20 and their product is 75. What is the sum of their reciprocals?
Explanation
(1/a)+(1/b) = (a+b)/ab = 20/75 = 4/15.