45-minute 82169

I have 38 lessons that last 70 minutes. How many teaching hours are there in terms of 45-minute lessons?

Correct answer:

n2 =  59

Step-by-step explanation:

n1=38 t1=70 min  t2=45 min  T=t1 n1 = t2   n2 T=t1 n1=70 38=2660 min  n2=T/t2=2660/45=59

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