1. The ratio between the length and the breadth of a rectangular park is 3 : 2. If a man cycling along the boundary of the park at the speed of 12 km/hr completes one round in 8 minutes, then the area of the park (in sq. m) is: (2)
- 1. 15360
- 2. 153600
- 3. 30720
- 4. 307200
2. An error 2% in excess is made while measuring the side of a square. The percentage of error in the calculated area of the square is: (4)
- 1. 2%
- 2. 2.02%
- 3. 4%
- 4. 4.04%
3. The ratio between the perimeter and the breadth of a rectangle is 5 : 1. If the area of the rectangle is 216 sq. cm, what is the length of the rectangle? (2)
- 1. 16 cm
- 2. 18 cm
- 3. 24 cm
- 4. Data inadequate
- 5. None of these
4. The percentage increase in the area of a rectangle, if each of its sides is increased by 20% is: (3)
- 1. 40%
- 2. 42%
- 3. 44%
- 4. 46%
5. A rectangular park 60 m long and 40 m wide has two concrete crossroads running in the middle of the park and rest of the park has been used as a lawn. If the area of the lawn is 2109 sq. m, then what is the width of the road? (2)
- 1. 2.91 m
- 2. 3 m
- 3. 5.82 m
- 4. None of these