A granary is in the shape of a cuboid of size `12mxx6mxx4m`. A bag of grain occupies a space of `0.75m^3`. How many bags can be stored in the grnaary?

A godown is in the form of a cuboid of measures 60 m xx 40 m xx30 m . How many cuboidal boxes can be stored in it if the volume of one box is 0.8 m^3 ?

A bag of grain contains 2.8 m^3 of grain. How many bags are needed to fill a drum of radius 4.2 m and height 5m?

A cloth having an area of 165m^2 is shaped into the form of a conical tent of radius 5m How many students can sit in the tent if a student, on the average occupies 5/7m^2 on the ground.

This is a figure of a rectangular park (see figure) whose length is 30m and width is 20m. There is a path of one metre width running inside along the perimeter of the park that has to be cemented. If 1 bag of cement is required to cement 4m^2 area, how many bags of cement would be required to construct the cemented path?

A cuboidal water tank is 6 m long 5 m wide and 4.5 m deep. How many litre of water can it hold ?

The area of a rectangular floor of side 40 m is 960 m^2 . The carpets of size 6 m xx 4 m are available. How many carpets are needed to cover the floor.

Nazima is fly fishing in a stream. The tip of her fishing rod is 1.8 m above the surface of the water and the fly at the end of the string rests on the water 3.6 m away and 2.4 m from a point directly under the tip of the rod. Assuming that her string (from the tip of her rod to the fly) is taut, how much string does she have out ? If she pulls in the string at the rate of 5 cm per second, what will the horizontal distance of the fly from her after 12 seconds ? .

Find the how many cubes, each of edge 4 m, can be cut from a cuboid of dimensions 20mxx16mxx8m .

Monochromatic ligth of wavelgth 6,000 overset @A is used in a Young's double slit experiment.One of the slits is covered by a transparent film of thickness 1.2 xx 10^(-5) m having refractive index 1.4.How many fringes will shift due to the introduction of the film?