A metal sheet 27 cm long 8cm broad and 1 cm thick is melted into a cube. The difference between the surface areas of two solids is__________?
A. 284 cm2
B. 286 cm2
C. 296 cm2
D. 300 cm2
Basic Arithmetic
The height of two right circular cones are in the ratio 1:2 and their perimeters of their bases are in the ratio 3:4, the ratio of their volume is_________?
A. 3:8
B. 9:16
C. 9:32
D. 9:64
Surface area of two spheres are in the ratio 1:4 what is the ratio of their volumes?
A. 1:64
B. 1:8
C. 1:4
D. 8:1
A wooden box of dimensions 8m x 7m x 6m is to carry rectangular boxes of dimensions 8cm x 7cm x 6cm. The maximum number of boxes that can be carried in 1 wooden box is?
A. 1200000
B. 1000000
C. 9800000
D. 7500000
A rectangular field 30 m long and 20 m broad. How much deep it should be dug so that from the earth taken out, a platform can be formed which is 8 m long, 5.5 m broad and 1.5 m high where as the earth taken out is increase by 10/5?
A. 12 cm
B. 10 cm
C. 18 cm
D. 24 cm
A brick measures 20 cm * 10 cm * 7.5 cm how many bricks will be required for a wall 25 m * 2 m * 0.75 m?
A. 24000
B. 23000
C. 22000
D. 25000
The sides of a cube are in the ratio 1:2 the ratio of their volume is__________?
A. 1:2
B. 1:4
C. 1:8
D. 2:1
The diameters of two spheres are in the ratio 1:2 what is the ratio of their surface area?
A. 1:2
B. 1:4
C. 2:1
D. 4:1
The diameters of two spheres are in the ratio 1:2 what is the ratio of their volumes?
A. 3:4
B. 9:16
C. 1:8
D. 4:3
If in a box of dimensions 6 m * 5 m * 4 m smaller boxes of dimensions 60 cm * 50 cm * 40 cm are kept in it, then what will be the maximum number of the small boxes that can be kept in it?
A. 500
B. 1000
C. 900
D. 600