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Mediant Madness

Age 14 to 16
Challenge Level Yellow starYellow star
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If Kyle scored 75% on section A, how many questions might there have been?
How many did he get right in each case?

In section B, he scored 35%, how many questions might there have been?
How many did he get right in each case?

Do any of your examples give a total score of 55% when you add together Kyle's marks for the two sections?


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The NRICH Project aims to enrich the mathematical experiences of all learners. To support this aim, members of the NRICH team work in a wide range of capacities, including providing professional development for teachers wishing to embed rich mathematical tasks into everyday classroom practice.

NRICH is part of the family of activities in the Millennium Mathematics Project.

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