If two circles are such that the centre of one lies on the circumference of the other then the ratio of the common chord of the two circles to the radius of any. one of the circles is:

1.  2 : 1

2.  √3 :1

3.  √5:1

4.  4 : 1

4

√3 :1

Explanation :
No Explanation available for this question

If a wire is bent into the shape of a square, the area of the square is 81cm. When the wire is bent into a semicircular shape, the area of the semicircle is

1.  154 cm2

2.  77 cm2

3.  44 cm2

4.   22 cm2

4

77 cm2

Explanation :
No Explanation available for this question

A three digit number is 13 more than 51 times the sum of digits. The sum of digits. The sum of unit’s digit and hundred’s digit is 3 more than the ten’s digit. If 693 is subtracted from the number, the obtained number gets the digits reversed. Find the original number.

1.  289

2.  982

3.  892

4.   298

4

982

Explanation :
No Explanation available for this question

A sum of Rs. 12 is made up of 30 coins which consist of either 50 paise or 25 paise coins. How many are there of so paise coins

1.  20

2.  18

3.  12

4.  16

4

18

Explanation :
No Explanation available for this question

The curved surface of a cylindrical pillar is 264 m2 and its volume is 924 m3. Taking =, find the ratio of its diameter to its height.

1.  7: 6

2.  6: 7

3.  3: 7

4.   7: 3

4

7: 6

Explanation :
No Explanation available for this question

The value of is equal to

1.  0.048

2.  0.84

3.  0.48

4.   0.084

4

0.84

Explanation :
No Explanation available for this question

1.  2 : 1

2.  1 : 2

3.  1 : 1

4.  3 : 1

4

2 : 1

Explanation :
No Explanation available for this question

The square root of is

1.  250

2.  2500

3.  2000

4.   4000

4

2000

Explanation :
No Explanation available for this question

CD is a direct common tanger to two circles intersecting each other at A and B. Then CAD to CBD is equal to

1.  180°

2.  90°

3.  360°

4.  120°

4

180°

Explanation :
No Explanation available for this question

1.  2.1

2.  2.13

3.  2.03

4.   2.11

4