The average of 3 numbers is 18 and that of the first two is 16 Find the third number ........

Quantitative Aptitude (CDS) Average

The average of 3 numbers is 18 and that of the first two is 16. Find the third number?

average of three number is 18
the sum of three number is=54
the sum of the first two is=32
third number=54-32=22

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