Answer :
2 x 10 (classes x mins to take) = 20mins
21 x 2 = 42 individual students (students per class x number of classes)
42 x 3 (students x mins to take) = 126mins
20 + 126 = 146 minutes (2 hours and 26 minutes)
21 x 2 = 42 individual students (students per class x number of classes)
42 x 3 (students x mins to take) = 126mins
20 + 126 = 146 minutes (2 hours and 26 minutes)
Answer:
146 minutes
Step-by-step explanation:
2 class has 21 students each
2 class has students = 21+21=42
It takes time to click picture of 1 student = 3 minutes
It takes time to click picture of 42 student =[tex]3 \times 42[/tex] minutes
=[tex]126[/tex] minutes
It takes time to click picture of 1 class = 10 minutes
It takes time to click picture of 2 class = 20 minutes
So, total time = 126 minutes + 20 minutes = 146 minutes
Thus it will take 146 minutes to get all of the pictures
