It would be 3:40 since 1 hour and the 40 minutes add up and the choir is after the meeting
3 : 3,6,9,12,15,18,21,24,27,30
4 : 4,8,12,16,20,24,28,32,36
7: 7,14,21,28,35,42,49,56,63
9: 9,18,27,36,45,54,63,72,81
Answer:
13 cm
Step-by-step explanation:
We can get the answer in the following way: