September 8

Maths Mate Sheet 7 Question 23 (Term 3 2014)

Prediction: I predict this problem will be about code breaking.

Read: An archeologist found some ancient numbers written as follows: (I’ll use keyboard symbols instead).

!!@@ For 202        !### For 130    and    ##@@@ For 23   What did !#@@@ equal?

Clarification: None needed.

The Big Question: What did !#@@@ equal?

Mathematician’s Toolbox: Have I seen a similar problem?/Test all Possibilities

Solving: First I used my test all possibilities strategy and the first clue to find that ! is 100 and @ is 1 because 100 + 100 + 1 + 1 = 202. Then using the second clue I figured out that # equals 10 because 100 + 10 + 10 + 10 = 130. So then I added it all up: 100 + 10 + 1 + 1 + 1 = 113

Conclusion: So the answer was 113.


Posted September 8, 2014 by Rat in category maths, Other, Uncategorized

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