Answer:
The number can be many numbers like: 7,777,111 or 7,555,333 or 7,111,777
A: 7,777,111
We have four 7's and three 1's
B: 7,555,333
We have one 7, three 5's and three 3's.
These also can be 7,333,555 or 7,111,777.
10%
Step-by-step explanation:
if he has 60 boxes then it would be 60/600
simplify that to 6/60 which further simplifies to 1/10 which is 10%