Question
Mathematics Question on Probability
If 2u=5x, is the relation between two variables u and x, and harmonic means of x is 0.8, find the harmonic mean of u.
A
1.250
B
1500
C
2
D
0.32
Answer
2
Explanation
Solution
The correct answer is(C): 2
If 2u=5x, is the relation between two variables u and x, and harmonic means of x is 0.8, find the harmonic mean of u.
1.250
1500
2
0.32
2
The correct answer is(C): 2