Question : A conical tent has to accommodate 25 persons. Each person must have 4 m² of space on the ground and 80 m³ of air to breathe. Find the height of the tent.

Option 1: 60 m

Option 2: 50 m

Option 3: 40 m

Option 4: 45 m

Question : A conical tent of height 10 m and base diameter 48 m was erected by a company in a park. Find the curved surface area of the tent (in m²).

Option 1: $576 \pi$

Option 2: $1248 \pi$

Option 3: $1152 \pi$

Option 4: $624 \pi$

Question : The volume of a cone whose radius of a base and height are $r$ cm and $h$ cm respectively, is 400 cm³. What will be the volume of a cone whose radius of base and height are $2r$ cm and $h$ cm respectively?

Option 1: 100 cm³

Option 2: 1600 cm³

Option 3: 1200 cm³

Option 4: 800 cm³

Question : A conical tent with a radius of 6 units and a height of 8 units is to be made with canvas. How much canvas is needed to make the tent? (Rounded off to two places of decimals)

Option 1: 188.57 units

Option 2: 155.87 units

Option 3: 166.57 units

Option 4: 177.55 units

Question : The radius of a right circular cylinder is thrice of its height. If the height of the cylinder is 2.1 cm, then what is the volume of a cylinder?

Option 1: 224.65 cm³

Option 2: 194.72 cm³

Option 3: 324.86 cm³

Option 4: 261.95 cm³