Question

Choose the correct answers.. The area of a rectangularfield is 4500 sq.nm. If its length and brcadth are in the 9: 5, then its perimeter is (a) 90 m (b) 150 m (c) 280 m (d) 360 m 2. If the area of AABC IS Cqual to area of square of side length 6 cm, then what is the length of the attitude to AB, where AB 9 cm? (a) 18 em (b) 14 enm (c) 12 cm (d) 8 cmn 3.lt the outer and inner diameters of a stone parapet around a well are 112 cm and 70 cm respectively, tnen what is the area of the parapet? (a) 264 cm (b) 3003 cm (c) 6006 cm (d) 24024 cm . the two parallel sides of a trapezium are l5 cm and 25 cm respectively and the distance between them is 7.0 cm, then area of the trapezium is (a) 105 cem- (b) 140 cm2 (c) 125 cm2 (d) None of these S. The diagonals of rhombus are 24 cm and 10 cm respectively. The perimeter ofthne rhombus Is (a) 68 em (d) 50 cm (b) 60 cm 6. The height ofa cuboid whose base area is 180 cm and volume is 900 cm is (c) 52cm (a) 6 cm (b) 5 cm (c) 7 cm (d) 8 cm. 'ne cireumference of thebase of a cylinder is 132 cm andits height is 25 cm. The volume of the cylinder is (a) 34500 cm 8. A metal cube of edge 12 cm is melted and formed into three smaller cubes. If the edge of two smaller cubes ar 6 cm and 8 em, the edge of the third smaller cube is (a) 8 cm(b) 34600 cms (c) 34650 cm* (d) 34450 cm* (b) 7 cm (c) 9 cm (d) 10 cm 9. A 20 m deep pit with diameter 7 m is dug up and the carthfrom digging is spread evenly to form a platform 22 m x 14 m.The height of the platform is (a) 1.5 m 10. A powder tin has a square basewith side 8 cm and height 13 cm. Another tin is cylindrical with radius of in base 7 cm and height15 cm. Which of the two containsmore powder? The difference of their capacities is (a) Cylindrical; 1475.9 cu.cm (c) Square base Tin; 1550 cu.cm. 11. The side of a cube whose surface area is 600 cm is (b) 2 m c) 2.5 m (d) 3.5 m ()Tin of squarebase; 1600 cu.cm. ()Cylindrical; 1500 cu.cm.(a) 8 cm (b) 10 cm (c) 6 cm (d) 15 cm 12. Each edge of a cube is increased by 50%. The percentage increase in the surface area ofthe cube is (a) 105% (b) 125% (c) 120% (cd) 115% 13. Three cubeseach of 5 cnm edge are joinedend to end. The area of the resulting cuboid is (a) 250 cm 14. A closedtent 12 m long, 9 m wide and 4 m deep is to be made. The cost of iron sheet used at the rate of per m, the sheet being 2 m wide is (a)900 15. The diameterofa roller is 1.4 m and it is 2 m long. The area it will cover in 5 revolutions is (b) 350 cm2 (c) 400 cm (d) 500 cm (b) 950 (c)960(c) 860D (a) 30 m2 (b) 40 m () 35 m (cd) 44 m ​

Answer 1

Answer:

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Step-by-step explanation:

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Answer 2

Answer:

i m not able to understand question

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