paulgee93 paulgee93

21-08-2021
Mathematics

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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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at4235756 at4235756

21-08-2021

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

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alayziahwashington0 alayziahwashington0

21-08-2021

Answer:

13 is the answer

Step-by-step explanation:

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