4 years ago

I don’t get it please help : /

Mathematics

1 answer:

katrin2010 [14]4 years ago

6 0

Answer:

Step-by-step explanation:

20 x 10 = 200 so 20 students sleep for 9 hours

that leaves 10

since 10 is half of 20, half of 2 is 1 so that last 10 = 1 student,

making 21 students

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