28. If the modes of the set
{1, 3, 6, 9, 12, 4x – y, y - x} are 6 and 9, then
X +y is
I.16
II) 19
III) 21
A) I only
B) II only
C) Both I and III
D) Both I and II
Answers
Answered by
1
Answer:
A.......................
Answered by
3
Answer:
B)
Step-by-step explanation:
4x-y=6
y-x=9
solve the equation we get
x=5 , y=14
x+y=19
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