# Five equal cubes, each of side 5 cm, are placed to each other. The volume of the new solid formed will be:

1.   125 cm3

2.  625 cm3

3.  15525 cm3

4.  None of these

4

625 cm3

Explanation :
No Explanation available for this question

# A cube of edge 5 cm is cut into cubes each of edge 1 cm. the ratio of the total surface area of one of the small cubes to that of the large cube is equal to

1.  1.5

2.  1 : 25

3.  1 : 125

4.  1 : 625

4

1 : 25

Explanation :
No Explanation available for this question

# A large cube is formed from the material obtained by melting three smaller cubes of 3, 4 and 5 cm side. What is the ratio of the total surface areas of the smaller cubes and the large cube

1.  2 : 1

2.  3 : 2

3.  25 : 18

4.  27 : 20

4

25 : 18

Explanation :
No Explanation available for this question

# Three cubes with sides in the ratio 3 : 4 : 5 are melted to form a single cube whose diagonal is 12√3 cm. The sides of the cubes are:

1.  3 cm, 4 cm, 5 cm

2.   6 cm, 8 cm, 10 cm

3.  9 cm, 12 cm, 15 cm

4.  None of these.

4

6 cm, 8 cm, 10 cm

Explanation :
No Explanation available for this question

# if the volumes of two cubes are in the ratio 27:1, the ratio of their edges is

1.  1:3

2.  1:27

3.   3:1

4.  27:1

4

3:1

Explanation :
No Explanation available for this question

# The volumes of two cubes are in the ratio 8:27. The ratio of their surface areas is

1.  2:3

2.  4:9

3.  12:9

4.  None of thes

4

4:9

Explanation :
No Explanation available for this question

# Two cubes have volumes in the ratio 1:27. Then the ratio of the area of the face of one of the cubes to that of other is:

1.  1:3

2.  1:6

3.  1:9

4.  1:12

4

1:9

Explanation :
No Explanation available for this question

# If each edge of a cube is doubled, then its volume

1.  is doubled

2.  becomes 4 times

3.  becomes 6 times

4.  becomes 8 times

4

becomes 8 times

Explanation :
No Explanation available for this question

# If each edge of a cube is increased by 25%, then the percentage increase in its surface area is

1.  25%

2.  48.75%

3.   50%

4.  56.25%

4

56.25\%

Explanation :
No Explanation available for this question

1.  32 m3

2.  36 m3

3.   40 m3

4.  44 m3

4