Question 273631
The average of a list of positive numbers is 20 per cent of the sum of the
numbers. How many numbers are there in the list?
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Let the sum be "x":
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Average = sum/#
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Average = 0.20x
sum/# = 0.20x
x/# = 0.20x
# = 1/0.20
# = 5
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Cheers,
Stan H.





 
(A) 5 (B) 20 (C) 80 (D) 100 (E) Cannot be said.