Question

You are a school photographer taking individual and class pictures for two classes of 21 students each on average each individual picture takes three minutes in a class picture takes 10 minutes how long should it take for you to take all the pictures

Answer 1

21•2=42
42•3=126
2•10=20
126+20=146
it will take 146 minutes or 2 hours and 26 minutes to take all the photos

hope this helps!