search
Q: The average of 52, 71, 43, 22, a, and b is 55 and the average of 42, 45, 49, 51, 42, c, and d is 53. What is the average of a, b, c, and d?
  • A. 54.7
  • B. 71
  • C. 54
  • D. 142
Correct Answer: Option B -
answer image

Explanations:

explanation image