Quantitative Aptitude-Area
Quantitative Aptitude-Area
31. If the area of a rhombus is 15sq. cm and the length of one of its diagonals is 5 cm, then the length of the other diagonal is ;
- 3 cm
- 5 cm
- 6 cm
- 7 cm
32. In a rhombus whose area is 144 sq. cm, one of its diagonals is twice as long as theother. theength of its diagonals are :
- 12 cm, 24 cm
- 6 cm, 12 cm
- 24 cm, 48 cm
- 18 cm,32 cm
33. The perimeterof rhumbus is 52 metres and its shorter diagonal is 10 metres long. The length of longer diagonal is :
- 12 m
- 18 m
- 10.4 m
- 24 m
34. The length of one diagonal of a rhombus is 80% of the other diagonal. The area of the rhombus is how many times the square of the length of the longer diagonal ?
- 4/5
- 2/5
- 3/4
- 1/4
35. If a square and a rhombus stand on the same base, then the ratio of the areas of the square and the rhombus is :
- Greater than 1
- Equal to 1
- Equal to 1/2
- Equao to 1/4
36. The parallel sides of a trapezium are in the ratio of 3 : 5 and the perpendicular distance between them is 12 cm. If the area of the trapezium is 384 sq. cm, then the smaller of the parallel sides is :
- 16 cm
- 24 cm
- 32 m
- 40 cm
37. The cross section of a canal is trapezium in shape. The canal is 12 m wide at the top and 8 m wide at the bottom. If the area of the cross section is 840 sq. m, the depth of the canal is :
- 42 m
- 84 m
- 63 m
- 8.75 m
38. The area of a circle is 38.5 sq.cm. Its circumference is :
- 6.2 cm
- 11 cm
- 22 cm
- 121 cm
39. The areas of two concentric circles forming a ring are 154 sq.com and 616 sq.cm. the breadth of the ring is :
- 7 cm
- 14 cm
- 21 m
- 28 cm
40. A circular road runs round a circular ground. If the diference between the circumferences of the outer circle andinner circle is 66 metres. the width of the road is :
- 5.25 m
- 7 m
- 10.5 m
- 21 m