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Ratio (Pri-5)

/ Ratio Clementi Primary School / Homework (2018)
7. Mrs Lim had some bags in her shop. of them were Brand A, 4 of the remaining were Brand B and the rest were Brand C The table below shows the amount she earned per bag. Types of bags Brand A Brand B Brand C Amount earned per bag $240 $180 $130 She sold 50% of the bags and earned $14100. The ratio of the number of Brand A bags sold to the number of Brand B bags sold to the number of Brand C bags sold was 3:4: 7. How many Brand B bags did she have at first?
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August 15, 2018
 
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From after:3U ( 240 ) + 4U ( 180 ) + 7U ( 130 ) = 141002350 U = 14100        U = 6---Total After = 14U = 14 × 6 = 84Total Before = 2 × 84 = 168   (because he sold 50%)---So B Before = 38 × 168 = 63 bags  (ans)
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Aug 15, 2018 11:17 AM
Your help is greatly appreciated, thanks again!
August 15, 2018
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