A hollow cylindrical drum has internal diameter of 30 cm and a height of 1 m. What is the maximum number of cylindrical boxes of diameter 10 cm and height 10 cm each that can be packed in the drum?

1. 60

2. 70

3. 80

4. 90

Ice-cream, completely filled in a cylinder of diameter 35 cm and height 32 cm, is to be served by completely filling identical disposable cones of diameter 4 cm and height 7 cm. The maximum number of persons that can be served in this way is :

1. 950

2. 1000

3. 1050

4. 1100

A solid is in the form of a right circular cylinder with hemispherical ends. The total length of the solid is 35 cm. The diameter of the cylinder is one-fourth of its height. The surface area of the solid is :

1. 462 cm²

2. 693 cm²

3. 750 cm²

4. 770 cm²

Directions:

At an NCC camp, several tents were installed. Each tent is cylindrical to a height of 3 m and conical above it. The total height of the tent is 13.5 m and the radius of its base is 14 m.

Based on this information, answer the following questions:

(a) 16.5 m
(b) 17.5 m
(c) 18.5 m
(d) 19.5 m

(a) ₹ 76560
(b) ₹ 80140
(c) ₹ 82720
(d) ₹ 85960

(a) 960
(b) 1155
(c) 1320
(d) 1440

(a) 48 m³
(b) 52 m³
(c) 55 m³
(d) 77 m³