Answer and Explanation
Your Answer is
Correct Answer is B
Explanation
It can be seen from the meaning of the question: the average of the six numbers is 4.5, if the numbers are all increased by 4, then the average will not change.
Your Answer is
Correct Answer is B
Explanation
It can be seen from the meaning of the question: the average of the six numbers is 4.5, if the numbers are all increased by 4, then the average will not change.