Posted by Anonymous on Thursday, December 16, 2010 at 8:19pm.
If the average of 11 numbers are 20 and the average of 3 numbers are 48, what is the average of all the numbers.(

math  Reiny, Thursday, December 16, 2010 at 9:25pm
the total of the first 11 numbers is (11)(20) or 220, and the total of the other 3 numbers is 3(48) or 144
so the total is 220+144 = 364
and there are 14 numbers
the average of all of them is 364/14 = 26