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 By: fanny6573 (offline)  Tuesday, April 05 2011 @ 07:57 AM CDT (Read 1581 times)
fanny6573

Hi

Please help to solve the question.

Siti opened a 2-kg packet of flour. She used 4/9 of the flour to make the pizza.
Then she used 2/7 of the remaining flour to make cakes.
Find the mass of the packet of flour that she had left.
Express your answer correct to 2 decimal places.

Thank you.

Junior

Registered: 07/19/10
Posts: 28

 By: richardli (offline)  Wednesday, April 06 2011 @ 12:30 AM CDT
richardli

2 kg = 2000g
Remaining of flour = 5/9 x 2000
= 1111.11g
She uses 2/7 of the remaining to make cake
Remainign of flour left = 5/7 x 1111.11
= 793.65g

Newbie

Registered: 12/31/06
Posts: 10

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