The mean of three numbers is 8. The mean of those three numbers and x is 7. Find x.
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ʜʟᴏ ᴍᴀᴛᴇ ʜᴇʀᴇ ɪꜱ ᴛʜᴇ ᴀɴꜱᴡᴇʀ
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I hope it may help you.
when mean of three numbers is given,we get the sum of those three numbers.
we use those sum with 'x' in our next calculation.
The mean of three numbers and x means we have 4 observations,so we take ( three numbers sum and x ) by dividing with 4 = mean (given as 7)
so we get x value by solving.
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