John, 12-years-old, is three times as old as his brother. How old will John be when he is twice as old as his brother? Two families go bowling. While they are bowling, they order a pizza for £12, six ...
Medically reviewed by Dakari Quimby, PhD The average IQ score is designed to be 100.IQ scores between 90 and 109 are considered average.Genetics accounts for about 50% of the IQ differences between ...