3 years ago

Here are the numbers of children in 12 elementary school classes.

Mathematics

2 answers:

ludmilkaskok [199]3 years ago

5 0

Answer:

18, 19(which has two) 20(has two)

Step-by-step explanation:

Just find the ones that appear more than one time.

chubhunter [2.5K]3 years ago

3 0

Answer:

Step-by-step explanation:

Re-arrange

16 16,16,17,18,||18,18||,19,19,19,20,20

Find the middle number

i.e ( 18+18) /2

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