Question 472490: On tue I bought5 hats on wed half were destroyed on thur there were 17 left how many do I have on mon? Answer by gilwa(3) (Show Source):
You can put this solution on YOUR website! tues = +5
wed = half gone
thurs= 17 left
work backwards... 17*2 is 34 so on tues there were 34
34-5 = 29
Started with 29.
so 29+5=34 34/2 = 17
answer is 29 on Monday