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Posts Tagged ‘algebra’

Problem of the Week – Week 7

In Numeracy Problem of the Week, QR on January 20, 2010 at 2:36 pm

Problem of the Week

Puzzle 7

What is the value of R?

            Q + M = C

            C + K = R

            R + Q = S

            M + K + S = 20

            Q = 4

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