# 5 persons can prepare an admission list in 8 days working 7 hours a day. If 2 persons join them so as to complete the work in 4 days, they need to work per day for

1.  10 hours

2.  9 hours

3.  12 hours

4.   8 hours

4

10 hours

Explanation :
No Explanation available for this question

# If the length of shadow of a pole on a level ground is twice the length of that pole, the angle of elevation of the sun is

1.  60o

2.  30o

3.  45o

4.   None of these

4

None of these

Explanation :
No Explanation available for this question

# A wire when bent in the form of a square encloses an area of 484 sq.cm.What will be the enclosed area when the same wire is bent into the form of a cicle (take Π =22/7)

1.  462 sq.cm

2.  539 sq.cm

3.  616 sq.cm

4.  693 sq.cm

4

616 sq.cm

Explanation :
No Explanation available for this question

# A right circular cylinder of height 16 cm is covered by a rectangular tin foil of size 16 cm x 22 cm. The volume of the cylinder is

1.  352 cm3

2.  308 cm3

3.  176 cm3

4.  316 cm3

4

316 cm3

Explanation :
No Explanation available for this question

# A right triangle with sides 3 cm, 4 cm and 5 cm is rotated about the side 3 cm to form a cone, the volume of the cone so formed is

1.  16

2.  12 ?

3.  15?

4.  20 ?

4

16

Explanation :
No Explanation available for this question

# From a point in the interior of an equilateral tri-angle, the lengths of the perpendiculars to the three sides are 6 cm, 8 cm and 10 cm respectively. The area of the triangle is sphere, its height is

1.  48 cm2

2.  16√3 cm2

3.  192√3 cm2

4.  192 cm2

4

192√3 cm2

Explanation :
No Explanation available for this question

# If the altitude of a triangle is increased by 10 while its area remains, same, its corresponding base will have to be decreased by

1.  10 %

2.  9 %

3.  9(1/11)%

4.  11(1/9)%

4

9(1/11)\%

Explanation :
No Explanation available for this question

# The total surface area of a metallic hemisphere 1848 cm2. The hemisphere is melted to form solid right circular cone. If the radius of the base of the cone is the same as the radius of the hemi sphere, its height is

1.  42 cm

2.  26 cm

3.  28 cm

4.  30 cm

4

28 cm

Explanation :
No Explanation available for this question

# A Circle inscribed: In an equilateral triangle side 8 cm. The area of the portion between the triangle and the circle is

1.  11 cm2

2.  10.95 cm2

3.  10 cm2

4.  10.50 cm2

4

10.95 cm2

Explanation :
No Explanation available for this question

1.  1:2:3

2.  2:1:3

3.  1:3:2

4.  3:1:2

4