1.

2.

3.

4.

4

Explanation :
No Explanation available for this question

# The in-radius of an equilateral triangle is of length 3 cm. Then the length of each of its medians is

1.  12 cm

2.

3.  4 cm

4.  9 cm

4

9 cm

Explanation :
No Explanation available for this question

# The base radii of two cylinders are in the ratio 2 : 3 and their heights are in the ratio 5:3. The ratio of their volumes is :

1.  27 : 20

2.  20 : 27

3.  9:4

4.  4:9

4

20 : 27

Explanation :
No Explanation available for this question

# The moon’s distance from the earth is 360000 km and its diameter subtends an angle of 30' at the eye of the observer. Find the diameter of the moon.

1.

2.

3.

4.

4

Explanation :
No Explanation available for this question

# A hemisphere and a cone have equal bases. If their heights are also equal, the ratio of their curved surfaces will be :

1.

2.

3.  1 : 2

4.  2 : 1

4

Explanation :
No Explanation available for this question

# Three solid metallic spheres of diameters 6 cm, 8 cm and 10 cm are melted and recast into a new solid sphere. The diameter of the new sphere is :

1.  4 cm

2.  6 cm

3.  8 cm

4.  12 cm

4

12 cm

Explanation :
No Explanation available for this question

1.

2.

3.

4.

4

Explanation :
No Explanation available for this question

# If a: b = 2 : 3 and b : c = 4 : 5, find a2 : b2 : bc

1.  4 : 9 : 45

2.  16 : 36 : 45

3.  16 : 36 : 20

4.  4 : 36 : 40

4

16 : 36 : 45

Explanation :
No Explanation available for this question

# If (x + y - z)2 + (y + z - a)2 + (z + x - y)2 = 0, then the value of x + y-z is

1.

2.

3.  3

4.  0

4

0

Explanation :
No Explanation available for this question

# ABC is an isosceles triangle in which AB = AC. If D and E are the mid-points of AB and AC respectively. The point B, C, D, E are :

1.  Collinear

2.  Non-collinear

3.  Concyclic

4.  None of these

4