Question
The average height of a group of 7 girls is 133 cm. When Usha and Nora left the group, the average height decreased by 4 cm. What is Usha and Nora's total height?
3 m

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The average height of a group of 7 girls is 133 cm. When Usha and Nora left the group, the average height decreased by 4 cm. What is Usha and Nora's total height?