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piyush2694
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$$Is\ \ \frac{w}{z}<1\ ?$$
$$\frac{w}{z}<1$$
$$\frac{w}{z}<1$$
$$Is\ w\ <z\ ?$$
Statement 1
$$w<z$$
$$=\frac{w}{z}<\frac{\left(1\cdot z\right)}{z}=\frac{w}{z}<1$$
Hence statement 1 is INSUFFICIENT.
Statement 2
z < 4
There are no information about the value of w hence statement 2 is INSUFFICIENT.
$$answer\ is\ Option\ A$$
