The mean of all five numbers is 168. Find the missing number!
 
											 
											Answer:
205 bones
Step-by-step explanation:
Add all bones and let the unknown be x
(250+199+85+101+x)/5=168
(635+x)/5=168
Cross multiply
168*5=635+x
840=635+x
840-635=x
x=205.
That's all