The average of 15 number is 15. If the average of first five numbers is 14 and that of other 9 numbers is 16 then find the middle number.
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Avg of 15 number is 15
First 5 number avg is 1 less so all number should 5 less
And next avg is 1 more so all 9 number 9 more
Now -5 + 9 = + 4
We can say middle no is 4 less ans is 15- 4 = 11
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First 5 number avg is 1 less so all number should 5 less
And next avg is 1 more so all 9 number 9 more
Now -5 + 9 = + 4
We can say middle no is 4 less ans is 15- 4 = 11
Mark as brainliest
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Step-by-step explanation:
ans.11
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