Help with this question please
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Help with this question please
Please help with this question
The mean (average) of four whole numbers is 16. The mean of three of them is 14.
The remaining number must be
A 2
B 15
C 22
D 30
This is fron sample paper of LANCASTER ROYAL GRAMMAR SCHOOL.
Thanks
The mean (average) of four whole numbers is 16. The mean of three of them is 14.
The remaining number must be
A 2
B 15
C 22
D 30
This is fron sample paper of LANCASTER ROYAL GRAMMAR SCHOOL.
Thanks
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Re: Help with this question please
If the mean of 4 numbers is 16 then the total = 64henna025 wrote:Please help with this question
The mean (average) of four whole numbers is 16. The mean of three of them is 14.
The remaining number must be
A 2
B 15
C 22
D 30
This is fron sample paper of LANCASTER ROYAL GRAMMAR SCHOOL.
Thanks
if the mean of 3 numbers is 14 then the total is 42
so remaining number is 22 i e how much do you have to add to get a mean of 16.
Re: Help with this question please
Thanks a lot