Question
The average height of a group of 8 girls is 110 cm. When Nicole and Zara joined the group, the average height increased by 11 cm. What is Nicole and Zara's total height?
3 m

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The average height of a group of 8 girls is 110 cm. When Nicole and Zara joined the group, the average height increased by 11 cm. What is Nicole and Zara's total height?