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 CHIJ ST NICHOLAS SA 2 2011 PAPER 2 Q6
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By: pyeo (offline)  Monday, December 09 2013 @ 08:45 AM CST (Read 1020 times)  
pyeo

Please help! Many thanks! Cry

Mdm Prashim spent 7/10 of her money on 8 tomatoes and 12 eggs. She spent the rest of her money on 3 tomatoes and 6 eggs. Find the total number of tomatoes Mdm Prashim could buy if she were to spend all her money on tomatoes.

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By: echeewh (offline)  Thursday, December 12 2013 @ 04:12 AM CST  
echeewh

Hi pyeo,

Following is my worked solution:

8T + 12E = (7/10)total -- (1)
3T + 6E = (3/10)total -- (2)

(2)x2:
6T + 12E = (6/10)total -- (3)

Comparing (1),(3), eliminate (E) as follows:

(1)-(3):
2T = (1/10)total
Total money = (10/10)total = 10 × 2T = 20T

Total number of tomatoes is 20

=========

Trust this helps.

Do let me know again if there's further clarification.

Cheers,
Edward

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