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CEMC Gauss (Grade 8), 2018

Algebra Difficulty 1.4 Junior Find the answer Canada

Mateo and Sydney win a contest. As his prize, Mateo receives $20 every hour for one week. As her prize, Sydney receives $400 every day for one week. What is the difference in the total amounts of money that they receive over the one week period?

Pick one

Solution

Since 11 410 kg of rice is distributed into 3260 bags, then each bag contains 11 410÷3260=3.511\,410\div3260=3.5 kg of rice.

Since a family uses 0.25 kg of rice each day, then it would take this family 3.5÷0.25=143.5\div0.25=14 days to use up one bag of rice.

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Source: CEMC, University of Waterloo, licensed CC-BY-NC-4.0. Statement reproduced verbatim; metadata (topic, difficulty) added by this project.