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 By: fesa146 (offline)  Monday, April 04 2011 @ 02:33 AM CDT (Read 1264 times)
fesa146

1) Mrs Tan baked a total of 164 banana and walnut muffins. After giving away 3/8 of the banana muffins and 4/5 of the walnut muffins, she was left with twice as many banana muffins as walnut muffins. Find the number of banana muffins that Mrs Tan gave away.

2)Belle had \$48 more than Aiden. Aiden spent 7/8 of his money and Belle spent 4/7 of her money. In the end, Aiden had 1/4 as much money as Belle. Find the amount of money Aiden had at the end.

Newbie

Registered: 12/31/06
Posts: 3

 By: shanthi (offline)  Friday, April 08 2011 @ 11:31 PM CDT
shanthi

1) Mrs Tan baked a total of 164 banana and walnut muffins. After giving away 3/8 of the banana muffins and 4/5 of the walnut muffins, she was left with twice as many banana muffins as walnut muffins. Find the number of banana muffins that Mrs Tan gave away.
Left
Banana muffins: 5/8 = 10/16
Walnut muffins: 1/5 = 5/25

(16+25)u = 164
41u = 164
u = 4

Number of banana muffins that were given away by Mrs Tan = (16-10)u = 6u = 6x4 = 24.

2)Belle had \$48 more than Aiden. Aiden spent 7/8 of his money and Belle spent 4/7 of her money. In the end, Aiden had 1/4 as much money as Belle. Find the amount of money Aiden had at the end.
Left
Aiden: 1/8 = 3/24
Belle: 3/7 = 12/28

(28-24)u=48
4u=48
u = 12

Amount of money that Aiden had at the end: 3u = 3x12 = \$36

Junior

Registered: 12/31/06
Posts: 27

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