Eric bought a package of loose leaf paper that contained 500 sheets. In the first week, he used 1/5 of the paper. During the next two weeks, Eric used 2/5 of the remaining paper. How many sheets of paper did Eric have available at the start of the fourth week?
Choices
A. 100 sheets
B. 200 sheets
C. 240 sheets
D. 260 sheets
I'll be glad to check your answer.
Okay, my answer was 240
Because i guessed
Your guess is wrong.
500 [(5/5) - (1/5) - (2/5)] = _______ sheets
200 sheets?
Yes, 200 sheets
Thanks, Ms.Sue
You're welcome, Trey.
sheets left after 1st week = 4/5 of 500 = 400
after 2 more weeks 3/5 of those are left = 240
or, long way:
papers used in 1st week = (1/5)(500) = 100
left: 400
he uses 2/5 of those: (2/5)(400) = 160
leaving him 400 - 160 or 240 at the end of 3rd week
Reiny is right -- and Trey was right at first.
I didn't read carefully to see that it said 2/5 of the pages left.