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# If a and b are positive integers, what is the value of a + b

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16 Jul 2005, 22:45
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If a and b are positive integers, what is the value of a + b ?

(1) a/b = 5/8

(2) The greatest common divisor of a and b is 1.
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17 Jul 2005, 07:46
Folaa3 wrote:
If a and b are positive integers, what is the value of a + b ?

(1) a/b = 5/8

(2) The greatest common divisor of a and b is 1.

Well i will go for c
st 1 just a ratio between a and b
8a=5b
insufficient to find a+b

st2 NO common factor between a and b
could be 7 AND 9 OR 5 AND 8
insufficient

together syes
8a=5b
8*5=5*8

a+b= 5+8 = 13

Plz correct me if i am wrong thanks

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17 Jul 2005, 09:17
no need to do math here...it should be C
17 Jul 2005, 09:17
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# If a and b are positive integers, what is the value of a + b

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