find the mean of 75 numbers if the mean of 45 of them is 18 and the mean of the remaining ones is 13
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Answered by
83
here we have to find 75 numbers mean
mean of 45 of them is 18 then we have to multiply 45 × 18 = 810
remaining numbers are 30
then we have to multiply 30 × 13 = 390
and at 810 and 390
810+390=1200
we have to divide 1200 by 75 for finding mean
1200÷75=16
the mean of 75 numbers is 16
I hope you got your answer
mean of 45 of them is 18 then we have to multiply 45 × 18 = 810
remaining numbers are 30
then we have to multiply 30 × 13 = 390
and at 810 and 390
810+390=1200
we have to divide 1200 by 75 for finding mean
1200÷75=16
the mean of 75 numbers is 16
I hope you got your answer
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if u simplify 1200/75 mean is 16
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