The sum of three consecutive even numbers is 90; the middle number is:

1. 28

2. 30

3. 32

4. none of these

The length of a rectangle is 8 m more than its breadth. If the perimeter of the rectangle is 40 m, the length of the rectangle is:

1. 6 m

2. 12 m

3. 14 m

4. 20 m