## 7 BagsMath brain teasers require computations to solve.
I have 7 bags of marbles. There are 200 marbles in total. Using the clues below, work out how many marbles are in each bag.
Bag 1 + Bag 2 = 57 marbles Bag 2 + Bag 3 = 83 marbles Bag 3 + Bag 4 = 71 marbles Bag 4 + Bag 5 = 43 marbles Bag 5 + Bag 6 = 66 marbles Bag 6 + Bag 7 = 43 marbles ## AnswerBag 1 = 31 marblesBag 2 = 26 marbles Bag 3 = 57 marbles Bag 4 = 14 marbles Bag 5 = 29 marbles Bag 6 = 37 marbles Bag 7 = 6 marbles If you know that Bag 1 + Bag 2 = 57 marbles, and Bag 3 + Bag 4 = 71 marbles, and Bag 6 + Bag 7 = 43 marbles, then you should be able to work out the amount of marbles for Bag 5. 200-57-71-43=29 so Bag 5 has 29 marbles. From that you can work out that Bag 4 has 14 marbles and Bag 6 has 37. From that you can work out that Bag 3 has 57 marbles and that Bag 7 has 6 marbles. From that you can work out that Bag 2 has 26 marbles and from that you can work out that Bag 1 has 31 marbles. Hide ## What Next?
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