1/9/15 5:23:18 pm: Sylvia Chang (5c15):
300 people stand in a row.
Starting from the first person on the LEFT, each person calls out a number in this pattern: 1,2,3,1,2,3,1,2,3...
Starting from the first person on the RIGHT, each person calls out a number in this pattern:1,2,3,4,1,2,3,4,1,2,3,4...
How many people call out the number 2 twice?
Sent from my iPhone
