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we know that GCF of fraction = (GCF of numerator) / (LCM of denominator)
therefore GCF(x/2,y/2) = GFC(x,y) / LCM(2,2)
1) from statement 1: we know that GCF(x/2,y/2) = 5
2) LCM of 2,2 = 2
therefore
5 = GCF(x,y) / 2
hence, GCF (x,y) = 10
A is sufficient $$$$
- by harsh8686
Sun Nov 11, 2018 2:16 am- Forum: Data Sufficiency
- Topic: What is the greatest common factor of positive integers
- Replies: 3
- Views: 717