A CHALLENGE TO YOU
I have just been playing around with a harder version of this question.
Say you have all that info EXCEPT you do not know how many people attended.
In PTA fundraising activity, couples who came were charged $400. However if only one parent came, he was charged $250.00.
59 People attended the activity and $12,150 was raised. How many couples attended?
You want to know all the possibilities of how many singles and how many couples attended.
I mean all the possible pairs of numbers in order for EXACTLY $12,150 to be raised.
Can you do that ?
I found exactly 6 posibilities. Can you find ANY or all of those?
GOOD LUCK :))