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 By: keenlearner (offline)  Friday, November 09 2012 @ 06:39 AM CST (Read 626 times)
keenlearner

Just like to check if the answer key is wrong?

Question:
Hui Hui had some stickers. She gave 18 stickers to her sister and 5/7 of the stickers to Mary. Then, she used 3/4 of the remainder for her project and had 35 left. How many stickers did she have at first?

Junior

Registered: 11/08/12
Posts: 22

 By: EMY (offline)  Friday, November 09 2012 @ 07:10 AM CST
EMY

Consider originally, Hui Hui has 1 unit.
After giving away 5/7u, she has 2/7u.
She also gave away 18, so:
2/7u - 18 = a
If 3/4 a is given away, then remainder is 1/4 a = 35
So a = 35 x 4 = 140

2/7u - 18 = 140
2/7u = 158
u = 553

Newbie

Registered: 10/21/10
Posts: 5

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