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
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
Calculate the number of bricks, each measuring 25 cm * 15 cm * 8 cm required to construct a wall of dimensions 10 m * 4 m * 5 m when 10% of its volume is occupied by mortar?
A. 4000
B. 5000
C. 6000
D. 7000
If the height of a cone is increased by 100% then its volume is increased by_________?
A. 100%
B. 200%
C. 300%
D. 400%
In digging a pond 20 m * 10 m * 5 m the volumes of the soil extracted will be_________?
A. 100 cu.m
B. 1000 cu.m
C. 10000 cu.m
D. 2000 cu.m