2009 · Q5
Consider the following pairs of numbers: (8, 12) II. (9, 11) III. (6, 24) Which pairs of number have the same harmonic means?
Elementary MathematicsStatistics
- AI and II
- BII and III
- CI and III
- DI, II and IIII
Explanation
HM(8,12)=HM(6,24)=9.6; HM(9,11)=9.9. So I and III match.