Mean of six numbers is 25,5. If x number is lost, a new mean of number is 21,6. Who is x?
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X = 27
semoga bermanfaaat.............
Jawaban:
the mean of 6 number is 25
=> the total of 6 numbers is 25×6= 150
if one number is excluded, the mean of 5 number is 27
=> the total of 5 numbers is 27×5=135
=>the excluded number is 150-135=15
jawabannya: 15
Penjelasan dengan langkah-langkah:
maaf klo salah soal atau salah ya
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