Question

Scott repeatedly rolls a pair of standard six-sided dice and keeps track of the
sum of the two numbers rolled each time. So far he has not rolled any sum
twice. What is the maximum possible number of times he has thrown the dice?

Answer 1

**** 1 2 3 4 5 6
===================
1***2 3 4 5 6 7
2***3 4 5 6 7 8
3***4 5 6 7 8 9
4***5 6 7 8 9 10
5***6 7 8 9 10 11
6 **7 8 9 10 11 12
There are 11 sums from 2 to 12 so you can roll 11 times without repeating

Answer 2

is 0.5 and 1/2 equivalent show diagram fifth grade