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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?
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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?
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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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