Mensuration (Part-5)Total Questions: 5041. If the height of a solid right circular cylinder is 27 cm and diameter of its base is 30 cm, the total surface area (in cm²) of the right circular cylinder is: (Take π = 22/7) [SSC CHSL 04/07/2024 (4th Shift)](a) 3978(b) 3960(c) 3976(d) 3964Correct Answer: (b) 3960Solution:42. 3 solid spheres of diameters 6 cm, 8 cm and 10 cm are melted together to form a single solid sphere. Find its radius. [SSC CHSL 04/07/2024 (4th Shift)](a) 3 cm(b) 12 cm(c) 9 cm(d) 6 cmCorrect Answer: (d) 6 cmSolution:43. The ratio of the lateral surface area to the total surface area of a cylinder with base diameter 60 cm and height 10 cm is: [SSC CHSL 04/07/2024 (4th Shift)](a) 1:9(b) 1:3(c) 1:7(d) 1:4Correct Answer: (d) 1:4Solution:44. The length, breadth and height of a cuboid are in ratio of 3 : 4 : 5. If the volume of the cuboid is 1620 m³, find the total surface area of the cuboid. [SSC CHSL 05/07/2024 (1st Shift)](a) 646 m²(b) 846 m²(c) 423 m²(d) 712 m²Correct Answer: (b) 846 m²Solution:45. A cylindrical oil tank has a radius of 5 m and a total surface area of 628 m², what would be its curved surface area? (round off to the second decimal place) [SSC CHSL 05/07/2024 (1st Shift)](a) 401.43 m²(b) 371.83 m²(c) 470.8 m²(d) 481.43 m²Correct Answer: (c) 470.8 m²46. Rajesh is playing with a football having diameter of 28 cm. He wants to get a photo of his favourite player painted on the entire ball. The painter charges ₹2/cm². What will be the cost (in ₹) of painting the ball (take π =22/7) ? [SSC CHSL 05/07/2024 (1st Shift)](a) 4,928(b) 2,414(c) 4,828(d) 2,464Correct Answer: (a) 4,92847. A solid copper sphere of radius 9 cm is drawn into a wire of radius 4 mm. Find the length of the wire [SSC CHSL 05/07/2024 (2nd Shift)](a) 70.25 m(b) 60.75 m(c) 20.75 m(d) 65.25 mCorrect Answer: (b) 60.75 m48. Find the height of the triangle whose base is two-thirds of its height and whose area is 363 cm² [SSC CHSL 05/07/2024 (2nd Shift)](a) 33 cm(b) 27 cm(c) 29 cm(d) 31 cmCorrect Answer: (a) 33 cm49. Find the percentage increase in surface area of a cube by triple each side. [SSC CHSL 05/07/2024 (3rd Shift)](a) 700%(b) 800%(c) 650%(d) 500%Correct Answer: (b) 800%50. If the length, breadth and total surface area of a cuboid are 30 cm, 20 cm and 2600 cm², respectively, then find its height. [SSC CHSL 05/07/2024 (3rd Shift)](a) 50 cm(b) 30 cm(c) 14 cm(d) 15 cmCorrect Answer: (c) 14 cmSubmit Quiz« Previous12345
