Answer:
The answer is: The greatest number she can have is 11.
Step-by-step explanation:
20 can be divided by 5, which makes 4. 5 can be divided by 5, which makes 1. 10 can be divided by 5, which makes 2. If you add your quotients (4, 5, and 2) then you will get your answer.
60% of 250 is 150; X over 250=60% over 100 then from there you cross multiply and get 6000=250X and then you divide 6000 by 250
