Coordinate of the midpoint of the line segment joining the points (5,6) and (1,2) is:
(1,2)
(2,4)
(3,4)
(4,5)
Gradient of a line perpendicular to the line joining the points (6,4) and (3,1) is:
2
-2
1
-1
Three sphere of radii 3 cm, 4cm and 5 cm are melted to form a new sphere. Then, the radius of the new sphere is:
6 cm
7.5 cm
10 cm
12 cm
If radius of a sphere is doubled then its volume becomes ________ times.
3
8
Volume of two sphere are in the ratio 64 : 27. The ratio of their surface area is:
3 : 4
4 : 3
9 : 16
16 : 9
The diameter of a copper sphere is 6 cm. The sphere is meted and is drawn into a long wire of uniform circular cross - section. If the length of the wire is 36 cm, find its radius.
1 cm
1. 5 cm
2 cm
3 cm
Spherical ball of diameter 21 cm is melted and recasted into cubes, each of side 1 cm. Find the number of cubes thus formed.
4800
5800
4851
5851
Calculate the area of the following triangle.
65 cm2
70 cm2
72 cm2
79 cm2
Solve 2x + y = 12 and 2x - y = 8.
x = 1, y = 2
x = 5, y = 1
x = 5, y = 2
x = 2, y = 5
Gradient of the straight line y = 2x + 1 is:
0
