Exercise condition:

4
The average value of 5 numbers is 71. The average of 4 numbers is 66. Find the value which is added to the 4 numbers, using that choose the relationship between quantities \(A\) and \(B\).
 
Quantity \(A\): The value-added with a sum of  4 numbers.
 
Quantity \(B\): 90
 
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