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the mean of seven numbers is 15. when three numbers are added, the mean of ten numbers becomes 12. find the mean of the three numbers.​
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the mean of seven numbers is 15. when three numbers are added, the mean of ten numbers becomes 12. find the mean of the three numbers.​

User Victorio Berra
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2 Answers

4 votes

Answer:

13 is the answer

Explanation:

User Chrisvj
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2 votes

Answer:

3 is the value I guess because with seven it becomes 15 where as with 10 it become 12 so there is 3 numbers gap

I don't know exactly so I just try

User Jagat Dave
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