Question 1197150
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Hi
The average of four numbers is 67. 
If three of these numbers are 56, 87, and 72, 
what is the fourth number? Let x represent the 4th number
Question States:
(56 + 87 + 72 +x)/4 = 67
   56 + 87 + 72 + x= 4*67
                  x = 53
Checking answer:
(56 + 87 + 72 + 53)/4 = 67  checks.
Wish You the Best in your Studies.
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