If 2x - 15 > 4x + 9, then:

1. x < -12

2. x < 12

3. x > −12

4. x > 12

The locus of a toy bird fixed at the tip of one of the blades of a rotating ceiling fan is a:

1. straight line

2. circle

3. semi-circular arc

4. diameter of the circle so formed

Percentage return on ₹100, 12% share of a company bought at 4% discount is:

1. 10%

2. 12%

3. 12.5%

4. 16%