*Note: This question makes references to the previous question on the same page (#1), but still contains all the information required to solve it. (At least I think so!)
2. Shaggy has to learn the same 71 hiragana characters, and also has one week to do so; unlike Velma, he can learn as many per day as he wants. However, Shaggy has decided to obey the advice of a study-skills professional, who has advised him that the number of characters he learns on any one day should be within 4 of the number he learns on any other day.
a. What is the least number of hiragana that Shaggy could have to learn on Saturday?
b. What is the greatest number of hiragana that Shaggy could have to learn on Saturday?
The answer key suggests "...trial and error, considering different minimum values and noting the consequences
Where I'm stuck, is figuring out where to begin picking values.
I have difficulties picking "smart numbers
" elsewhere in the guides, but here in this problem the possibilities are absolutely bewildering.
I'm having trouble seeing how trial and error would be the most effective tactic on a problem such as this - especially in a timed setting.