Question
Barbara measured and recorded the mass of Zoe, Valen and Rael. The average mass of these 3 children was 54 kg. The next day, Barbara realized that she had recorded Zoe's mass wrongly. Zoe's recorded mass was 6 kg more than her actual mass. What was the correct average mass of the 3 children?
3 m

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Barbara measured and recorded the mass of Zoe, Valen and Rael. The average mass of these 3 children was 54 kg. The next day, Barbara realized that she had recorded Zoe's mass wrongly. Zoe's recorded mass was 6 kg more than her actual mass. What was the correct average mass of the 3 children?