# The average of three numbers is 20. If the two numbers are 16 and 22, the third number is: Option 1) 22Option 2) 20Option 3) 19Option 4) 18Option 5) -

$Avg. \: of \: 3\: numbers = 20$
$Sum = 3\ast 20 = 60$
$Third\: Number = 60-16-22 = 22$