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The mean of 10positive numbers is 16 when another number is added the mean is 18 . Find the number added?

The mean of 10positive numbers is 16 when another number is added the mean is 18 . Find the number added?
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The mean of 10positive numbers is 16 when another number is added the mean is 18 . Find the number added?

User Ckundo
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2 votes

Answer:

(10(16) + n)/11 = 18

160 + n = 198

n = 38

User Boneist
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