Answer:
12
Step-by-step explanation:
Average age of 5 boys = 11 year
Sum of age of 5 boys = 11*5 = 55
Age of sixth boy = 17 years
Sum of age of 6 boys = 55 + 17 = 72
Average age of 6 boys= 72/6 = 12
A..because look at the number....the 100ths collem is 2 and the next number is 4....and 1-4 round down...so this number Obhiously would be A
The answer is 149 because it is 180-31
The answer is 2,16. Hope that helps.