The figure below shows two concentric circles with centre O. PQRS is a square, inscribed in the other circle. It also circumscribes the inner circle, touching it at points B, C, D and A. What is the ratio of the perimeter of the outer circle to that of polygon ABCD     

1.  π/4

2.  3(π/2)

3.  π/2

4.  π

View Answer  
4
Correct Answer :

π/2


Explanation :
No Explanation available for this question

There is a circle of radius 1 cm. Each member of a sequence of regular polygons Sl (n), n = 4, 5, 6.... where n is the number of sides of the polygon, is circumscribing the circle; and each member of the sequence of regular polygons S2 (n), n = 4, 5, 6..... where n is the number of sides of the polygon, is inscribed in the circle. Let L1(n) and L2(n) denote the perimeters of the corresponding polygons of S1 (n) and S2 (n). Then {L1(13)+2π}/L2(17) is

1.  greater than π/4 and less than 1

2.  greater than 1 and less than 2

3.  greater than 2

4.  less than π/4

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4
Correct Answer :

greater than 2


Explanation :
No Explanation available for this question

There is a square field with each side 500 meters long. It has a compound wall along its perimeter. At one of its corners, a triangular area of the field is to be cordoned off by erecting a straight line fence. The compound wall and the fence will form its borders. If the length of the fence is 100 meters, what is the maximum area in square meters that can be cordoned off

1.  2,500

2.  10,000

3.  5,000

4.  20,000

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4
Correct Answer :

2,500


Explanation :
No Explanation available for this question

The number of positive integer valued pairs (x, y), satisfying 4x-17y=1 and x ≤ 1000 is:

1.  59

2.  57

3.  55

4.  58

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4
Correct Answer :

59


Explanation :
No Explanation available for this question

The remainder when 784 is divided by 342 is :

1.  0

2.  1

3.  49

4.  341

View Answer  
4
Correct Answer :

1


Explanation :
No Explanation available for this question

If n2= 123456787654321, what is n

1.  12344321

2.  1235789

3.  11111111

4.  1111111

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4
Correct Answer :

11111111


Explanation :
No Explanation available for this question

Ten points are marked on a straight line and eleven points are marked on another straight line. How many triangles can be constructed with vertices from among the above points

1.  495

2.  550

3.  1045

4.  2475

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4
Correct Answer :

1045


Explanation :
No Explanation available for this question

For a scholarship, almost n candidates out of 2n - 1 can be selected. If the number of different ways of selection of atleast one candidate is 63, the maximum number of candidates that can be selected for the scholarship is :

1.  3

2.  4

3.  2

4.  5

View Answer  
4
Correct Answer :

3


Explanation :
No Explanation available for this question

Abraham, Border, Charlie, Dennis and Elmer and their respective wives recently dined together and were seated at a circular table. The seats were so arranged that men and women alternated and each woman was three places distant from her husband. Mrs. Charlie sat to the left of Mr. Abraham. Mrs. Elmer sat two places to the right of Mrs. Border. Who sat to the right of Mr. Abraham

1.  Mrs. Dennis

2.  Mrs. Elmer

3.  Mrs. Border

4.  Mrs. Border or Mrs. Dennis

View Answer  
4
Correct Answer :

Mrs. Border or Mrs. Dennis


Explanation :
No Explanation available for this question

Three labelled boxes containing red and white cricket balls are all mislabeled. It is known that one of the boxes contains only white balls and one only red balls. The third contains a mixture of red and white balls. You are required to correctly label the boxes with the labels red, white and red and white by picking a sample of one ball from only one box. What is the label on the box you should sample

1.  White

2.  Red

3.  Red and White

4.  Not possible to determine from a sample of one ball

View Answer  
4
Correct Answer :

Red and White


Explanation :
No Explanation available for this question
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