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The average of 30 integers is 5. Among these 30 integers, there are exactly 20 which do not exceed 5. What is the highest possible value of the average of these 20 integers?
The average of 30 integers is 5. Among these 30 integers, there are exactly 20 which do not exceed 5. What is the highest possible value of the average of these 20 integers?
A 3.5
B 5
C 4.5
D 4
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Answer
Hi Devraj, as we should maximise the total of 20 integers that donot exceed 5 we have to minimise the total of remaining 10 by taking smallest possible value 6 for remaining 10 integers.. so 150-60=90 and 90/20=4.5 would be the answer
