You also mentioned that if they just took those two scores, you think he would be over 150. How can he be over 150 if none of his scores are over 150?
Ok - imagine that one in a hundred people in a room are wearing red shoes. And that One in a hundred people in that same room have purple hats. How many people would you expect to have BOTH red shoes and a purple hat? None!
How many rooms of people with the same dressing habits would you expect to have to look through before you found the room with the person who was wearing BOTH the red shoes and the purple hat? Quite a few, right?
That's why those two unusually high scores are even rarer when found together.
Actually - you aren't asking a bad question. After all - if it really were possible to give a single number that compared the intelligence of a Einstien and Shakespeare, then a perfect IQ test would reflect that 'true intelligence' (called little g or 'g') and so would each of it's subtests! All the subtests would always be the same. But realistically - would you like to rank Albert Einstien vs. William Shakespeare? Not me! So we have variations on the idea of multiple areas where intelligence can be noted.
Hope that helps,
Grinity