what is ratio of x:y:z?
1. z=1 and xy=32 (ins)
2. x/y=2 and z/y=1/4 suf
qa is b. but when testing numbers for st. 2 it is sufficient. BUt look what happens when you plug in 0 for x, the rest of the ratios follow as 0 also. this is different from the ratio relationships given from the other nubmers.
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(2) says that x/y=2 - so there's no possible way that x can be 0.Enginpasa1 wrote:what is ratio of x:y:z?
1. z=1 and xy=32 (ins)
2. x/y=2 and z/y=1/4 suf
qa is b. but when testing numbers for st. 2 it is sufficient. BUt look what happens when you plug in 0 for x, the rest of the ratios follow as 0 also. this is different from the ratio relationships given from the other nubmers.
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