Question 1
In a family of four: Narendra, Caleb, Ruby, Hailey. The youngest is 11 and the eldest is 22. The other two members are 18 and 21. What is the average age of the family?
Sum of all ages = 11 + 18 + 21 + 22 = 72
Average = 72 รท 4 = 18
Average = 72 รท 4 = 18