<PRE><B>Question 237065</B>
Bought apples at 20 cents each
Ate two of them
Made a profit of $2.20
How many did she buy?
:
Let x = no. of apples she bought
then
(x-2) = no. of apples she sold
;
Sale$ - cost = profit
.30(x-2) - .20x = 2.20
.30x - .60 - .20 = 2.20
.30x - .20x = 2.20 + .60
.10x = 2.80
x = {{{2.8/.1}}}
x = 28 apple she originally bought
:
:
Check solution
.30(26) - .20(28) =
7.80 - 5.60 = 2.20</PRE>