# The height and the radius of the base of a right circular cone are 12 am and 6am respectively. The radius of the circular cross section of the cone cut by a plane parallel to its base at a distance of 3 cm from the base is

1.  4 cm

2.  5.5 cm

3.  4.5 cm

4.  3.5cm

4

4.5 cm

Explanation :
No Explanation available for this question

# After measuring 120 metres of a rope, it was discovered that the measuring metre rod was three centimeters longer. The true length of the rope Measured is

1.  121 m 20 cm

2.  123 m 60 cm

3.  123 cm

4.  116 m 40 cm

4

123 m 60 cm

Explanation :
No Explanation available for this question

# The length of a rectangle is increased by 10% and breadth decreased by 10%. Then the area of the new rectangle is

1.  Neither decreased nor increased

2.  Increased by 1%

3.  Decreased by 1%

4.  Decreased by 10%

4

Decreased by 1\%

Explanation :
No Explanation available for this question

# The square root of 0.4 is

1.  0.8

2.  0.6

3.  0.7

4.  0.9

4

0.6

Explanation :
No Explanation available for this question

# The volumes of a sphere and a right circular cylinder having the same radius are equal. The ratio of the diameter of the sphere to the height of the cylinder is

1.  3: 2

2.  2: 3

3.  1: 2

4.  2: 1

4

3: 2

Explanation :
No Explanation available for this question

# A path of uniform width runs round the inside of a rectangular field 38 m long and .32 m; wide. If the path occupies 600m2, then the width of the path is

1.  30 m

2.  5 m

3.  18.75 m

4.  10 m

4

5 m

Explanation :
No Explanation available for this question

# The area of the largest circle, which can be drawn inside a rectangle with, side’s 18 cm, by 14 cm, is

1.  49 cm2

2.  154 cm2

3.  378 cm2

4.  1.078 cm2

4

154 cm2

Explanation :
No Explanation available for this question

# The ratio of the outer and the inner perimeters of a circular path is 23:22. If the path is 5, metres wide, the diameter of the inner circle is

1.  110 m

2.  55 m

3.  220 m

4.  230 m

4

220 m

Explanation :
No Explanation available for this question

# A sum of Rs.1550 was lent partly at 5% and partly 8% simple interest.The total interest received after 3 years is Rs.300.The ratio of money lent at 5% to that at 8% is:

1.  5 : 8

2.  8 : 9

3.  4 : 3

4.  8 : 3

4

8 : 3

Explanation :
No Explanation available for this question

1.  21 m2

2.  21 m2

3.  21 m2

4.  21 m2

4