Question
Tiffany reaches home at 7.40 a.m. every Monday. She will rest for 10 min and take another 20 min to complete her school work before her harp lesson starts. What time does the harp lesson start?
2 m

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Tiffany reaches home at 7.40 a.m. every Monday. She will rest for 10 min and take another 20 min to complete her school work before her harp lesson starts. What time does the harp lesson start?