Question: the average age of a group of n people is 14 years old . one more person aged 32 joins the group and the new average is 15 years old . what is the value of n ?
A) 13
B) 14
C) 15
D) 16
E) 17
Correct answer: e
Grade: 6 | Topic: Statistics and Probability | Difficulty: Hard | Standard: 6.SP.B.5