How many shots of 1cm radius can be prepared from a sphere of 3cm radius?
A. 36
B. 64
C. 27
D. 16
Basic Arithmetic
Find the length of the wire required to go 15 times round a square field containing 69696 m2.
A. 15840 m
B. 16840 m
C. 15820 m
D. 15640 m
What is the length of the longest pole which can be kept in a room 12 m long, 4 m broad and 3 m high?
A. 10 cm
B. 12 cm
C. 15 cm
D. 13 cm
The volumes of two cubes are in the ratio 27: 125, what shall be the ratio of their surface areas?
A. 6:25
B. 3:5
C. 9:25
D. 16:25
The edges of three iron cubes are 6cm; 8cm; 10cm respectively. A new cube was made by melting them. Find the edge of the new cube?
A. 8 cm
B. 12 cm
C. 14 cm
D. 10 cm
The edge of three cubes of metal is 3 dm, 4 dm and 5 dm. They are melted and formed into a single cube. Find the edge of the new cube?
A. 3 dm
B. 4 dm
C. 5 dm
D. 6 dm
The edges of a cuboid are respectively 3cm, 4cm and 12 cm. Find the length of the diagonal of cuboid.
A. 5 cm
B. 19 cm
C. 13 cm
D. 144 cm
If the sides of two cubes are in the ratio 3: 1 the ratio of their total surface area is?
A. 3:1
B. 8:1
C. 9:1
D. 12:1
The area of the floor of a room is 20 m2 that of a longer wall 15 m2 and of the shorter wall 12 m2, find the edge of the new cube?
A. 450 m3
B. 100 m2
C. 60 m3
D. 400 m3
The volume of a cube is 1728 cc. Find its surface.
A. 864 cm2
B. 648 cm2
C. 486 cm2
D. 468 cm2