Question
Which gas is most abundant in the Earth’s
atmosphere?Solution
Nitrogen makes up about 78% of Earth's atmosphere.
Determine the slant height of a cone with a volume of 1,884 cm³ and a base radius of 15 cm. (Use π = 3.14)
If ratio of interior & exterior angle of a regular polygon is 4:5, then number of sides of the polygon is
A well with 30 metre inner diameter is dug 6 m deep. Earth taken out of it, has been evenly spread all around it to a width of 15 m to form an embankmen...
A rectangular swimming pool is 40 meters long and 25 meters wide. If the pool is being filled at a rate of 10 cubic meters per minute, how long will it ...
On a rectangular wall of length 35 metres and height 30 metres, there is a window in the shape of triangle surmounted on a square. If the base of triang...
- A rod of length of 616 cm and 35cm radius is melted and converted into a sphere of radius 21cm, find how many such proper spheres can be made?
- The inner radius of a hollow cylindrical pipe is 4.8 cm. If the length of the pipe and the thickness of the pipe are 20 cm and 2.5 cm, respectively, calcul...
Two sides of the triangle are 14.8 cm and 10 cm. If height of the triangle corresponding to 14.8 cm side is 8 cm find the area?
...A field is in the shape of a trapezium, where the distance between the two parallel sides is 60 metres. One of the parallel sides measures 30 metres, an...
If a student scores 35% marks, then he is failed by 60 marks but he scores 48% marks he is passed by 96 marks. Find the passing percentage?
