please answer me please please please please please please please please please it's my request anyone give me right l will follow uh and brainlist.
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1) Average means all the numbers added divided by the number of numbers. For three unknown numbers we can add x+y+z and divide it by 3 to get average which in your question is 20. so we get x+y+z divided by 3 is 20. so to find x+y+z (the sum), we should take the 3 to the other side and multiply it by 20 to get 60. So, 60 is the sum of the three numbers.
2) Refer to the image clip for your answer. There are 5 friends in the group.
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