Which of the following is a cartilaginous fish?
Cartilaginous fish in the class Chondrichthyes include the subclass elasmobranchs (sharks, skates, and rays) and the older subclass of holocephalins (chimeras and elephant fish). Cartilaginous fish are the oldest extant jawed vertebrates or gnathostomes.
In a two cylinders the ratio of the radius of the two cylinders is 2:3 and their heights are in the ratio 5:3, then what will be the ratio of their volu...
The ratio of the curved surface area and total surface area of a cylinder is 16 : 17 . If the curved surface area of the cylinder is 308m². Find th...
The lateral surface area of a cube is 196 cm2 . The length of a cuboid is 50% more than the side of the cube. The breadth of the cuboid is 3 ...
Three cubes of equal volume are joined end to end. Find the surface area of the resulting cuboid if the diagonal of the cube is 7√3cm.
If (x + 6y) = 8, and xy = 2, where x > 0, what is the value of (x3 + 216y³)?
The outer radius of a hollow metallic spherical ball is 15 cm while the thickness of the metal used to make it is 12 cm. Find volume of the metal used i...
A street of width 15 metres surrounds from outside a rectangular garden whose measurement is 160 m × 140 m. The area of the path (in square metres...
Outer diameter of 20 cm long pipe is 25 cm. If the thickness of the metal in the pipe is 1 cm. Find the total surface area of the pipe?
A man standing in a point C of a ground. He observes a flying an aero-plane in the east at an angle of elevation of 30° and after 30 seconds, he obs...
