Maximum reduction possible per pass in wire drawing

Q. The maximum possible percentage reduction in area per pass during wire drawing of an ideal plastic material without friction is of the order of

1. 37
2. 50
3. 63
4. 75

Q. In a two-stage wire drawing operation, the fractional reduction (ratio of change in cross- sectional area to initial cross-sectional area) in the first stage is 0.4. The fractional reduction in the second stage is 0.3. The overall fractional reduction is

1. 0.24
2. 0.58
3. 0.60
4. 1.00