Question
Fiona measured and recorded the mass of Erika, Ivan, David and Will. The average mass of these 4 children was 47 kg. The next day, Fiona realized that she had recorded Erika's mass wrongly. Erika's recorded mass was 4 kg more than her actual mass. What was the correct average mass of the 4 children?
3 m

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Fiona measured and recorded the mass of Erika, Ivan, David and Will. The average mass of these 4 children was 47 kg. The next day, Fiona realized that she had recorded Erika's mass wrongly. Erika's recorded mass was 4 kg more than her actual mass. What was the correct average mass of the 4 children?