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Mathematics 24 Online
OpenStudy (anonymous):

a shirt has 16 buttons in two rows of red and blue where no of red>no of blue and their HCF is 4. what is the number of blue buttons?

OpenStudy (cwrw238):

the 2 numbers must add up to 16 and each must be divisible by 4. and reb > blue so it can't be 8 , 8

OpenStudy (cwrw238):

any ideas?

OpenStudy (cwrw238):

what is the GCF of 4 and 12?

OpenStudy (anonymous):

4

OpenStudy (cwrw238):

right - so what are the numbers of red and blue buttons?

OpenStudy (cwrw238):

- i've more or less told you the answer...

OpenStudy (anonymous):

4 and 12 adds up to 16. so it should be 4 and 12

OpenStudy (cwrw238):

yes

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