Question: the average age of 8 men is increased by years when two of them whose ages are 21 years and 23 years are replaced by two new men . the average age of the two new men is
A) 22
B) 30
C) 99
D) 38
E) 27
Correct answer: b
Grade: 6 | Topic: Statistics and Probability | Difficulty: Hard | Standard: 6.SP.B.5