ds #115

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Source: — Data Sufficiency |

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by niksworth » Wed Sep 01, 2010 7:23 am
Value of min (10,w) = w if w<=10
= 10 if w>10

So we need to find what w is.

Statement 1:
w = max(20,z)
Thus value of w is atleast 20.
This implies w>=20.
So, min (10,w) = 10.

Sufficient.

Statement 2:
w=max (10,w)
This implies w>10

In that case, min (10,w) = 10 (since w>10).

Sufficient.

Thus both statements are sufficient alone. So the answer is D.