A person has left an amount of R.s 1,20,000 to be divided between his two sons aged 14 years and 12 years such that they get equal amounts when each attains 18 years of age. If the amount gets a simple interest of 5% per annum, the younger son’s share at present is .

1.  Rs. 48,800

2.  Rs. 57,600

3.  Rs. 62,400

4.  Rs. 84,400

4

Rs. 57,600

Explanation :
No Explanation available for this question

If x2 + 3x + 1 = 0, then the value x3+ i/x3 is

1.  -18

2.  18

3.  36

4.  -36

4

-18

Explanation :
No Explanation available for this question

If  xa . xb. xc = 1 then the value of a3 + b3 + c3 is

1.  9

2.  Abc

3.  A+b+c

4.  3abc

4

3abc

Explanation :
No Explanation available for this question

Base of a right pyramid is a square, length of diagonal of the base is 24√2 ni. If the volume of the pyramid is 1728 cu.m, its height is

1.  7m

2.  8m

3.  9 m

4.  10 m

4

9 m

Explanation :
No Explanation available for this question

The height of a right circular cone and the radius of its circular base are respectively 9 cm and 3 cm. The cone is cut by a plane parallel to its base so as to divide it into two parts. The volume of the frustum (i.e., the lower part) of the cone is 44 cubic cm. The radius of the upper circular surface of the frustum (taking = 22/7)

1.  3√12 cm

2.  3√13 cm

3.  3√6 cm

4.  3√20 cm

4

3√13 cm

Explanation :
No Explanation available for this question

the ratio of radil of two right circuler cylinder is 2 : 3 and their heights are in the ratio 5 : 4 the ratio of their curved surface area is

1.  5 : 6

2.  3 : 4

3.  4 : 5

4.  2 : 3

4

5 : 6

Explanation :
No Explanation available for this question

A soild cylinder has total surface area is 1/3 rd of its total surface area. The volume of the cylinder is

1.  530 cm3

2.  536 cm3

3.  539 cm3

4.  545 cm3

4

539 cm3

Explanation :
No Explanation available for this question

A cylinder and a cone have equal radii of their bases and equal heights. If their curved surface areas are in the ratio 8 : 5, the ratio of their radius and height is

1.  1 : 2

2.  1 : 3

3.  2 : 3

4.  3 : 4

4

3 : 4

Explanation :
No Explanation available for this question

A solid is hemispherical at the bottom and conical above. If the surface areas of the two parts are equal, then the ratio of radius and5 height of its conical part is

1.  1:3

2.  1:1

3.  √3 : 1

4.  1 : √3

4

1 : √3

Explanation :
No Explanation available for this question

1.  9 cm

2.  10 cm

3.  1.1 cm

4.  12 cm

4