Question from Pranathi

17 May

In a bag, the ratio of the number of blue beads to yellow beads to white beads was 4 : 3 : 5.  25% of the blue beads were removed, and another 42 yellow beads were added.  In the end, the percentage of the number of white beads became 20% of the total number of beads.  How many beads were there in the bag at first?

Please click the following link for suggested solution: Question from Pranathi 17.05.13

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