Q155
If the arithmetic mean of 0, 5, 4, 3 is a, that of -1, 0, 1, 5, 4, 3 is b and that of 5, 4, 3 is c, then the relation between a, b, and c is
A.
a = b = c
B.
a : b : c = 3 : 2 : 4
AnswerC.
4a = 5b = c
D.
a + b + c = 12
Answer: Option B
Solution
Answer: Option B
Solution:
We have :