What are the unique values of b and c in the equation 4x2 + bx + c = 0 if one of the roots of the equation is (-1/2) A. The second root is 1/2 B. The ratio of c and b is 1

1.  1

2.  2

3.  3

4.  4

View Answer  
4
Correct Answer :

2


Explanation :
No Explanation available for this question

AB is a chord of a circle. AB = 5 cm. A tangent parallel to AB touches the minor arc AB at E.What is the radius of the circle A. AB is not a diameter of the circle B. The distance between AB and the tangent at E is 5 cm. 

1.  1

2.  2

3.  3

4.  4

View Answer  
4
Correct Answer :

1


Explanation :
No Explanation available for this question

A.-3 a ? 3  B. One of the roots of the equation 4x2-4x+1 = 0 is a.

1.  1

2.  2

3.  3

4.  4

View Answer  
4
Correct Answer :

1


Explanation :
No Explanation available for this question

D, E, F are the mid points of the sides AB, BC and CA of triangle ABC respectively. What is the area of DEF in square centimeters A. AD = 1 cm, DF = 1 cm and perimeter of DEF = 3cm B. Perimeter of ABC = 6 cm, AB = 2 cm, and AC = 2 cm

1.  1

2.  2

3.  3

4.  4

View Answer  
4
Correct Answer :

2


Explanation :
No Explanation available for this question

If  x = -0.5, then which of the following has the smallest value

1.  21/x

2.  1/x

3.  1/x2

4.  2x

View Answer  
4
Correct Answer :

1/x


Explanation :
No Explanation available for this question

Which among 21/2,31/3,41/4,61/6 and 121/12 is the largest

1.  21/2

2.  31/3

3.  41/4

4.  61/6

5.  121/12

View Answer  
5
Correct Answer :

31/3


Explanation :
No Explanation available for this question

The length, breadth and height of a room are in the ratio 3: 2: 1. If the breadth and height are halved while the length is doubled, then the total area of the four walls of the room will

1.  remain the same

2.  Decrease by 13.64%

3.  Decrease by 15%

4.  Decrease by 18.75 %

5.  Decrease by 30%

View Answer  
5
Correct Answer :

Decrease by 30\%


Explanation :
No Explanation available for this question

Consider a sequence where the nth term, tn = n/(n+2), n = 1, 2, …..The value of t3 x t4 x t5 x ……..x t53 equals:

1.  2/495

2.  2/477

3.  12/55

4.  1/1485

5.  1/2970

View Answer  
5
Correct Answer :

2/495


Explanation :
No Explanation available for this question

What are the values of x and y that satisfy both the equations                               20.7x.3-1.25y =8√6/27                               40.3x.9 0.2y = 8.(81)1/5

1.  x = 2, y =5

2.  x = 2.5, y =6

3.  x = 3, y = 5

4.  x = 3, y = 4

5.   x = 5, y =2

View Answer  
5
Correct Answer :

x = 3, y = 4


Explanation :
No Explanation available for this question

The number of solutions of the equation 2x + y = 40 where both x and y are positive integers and x ≤ y is :

1.  7

2.  13

3.  14

4.  18

5.  20

View Answer  
5
Correct Answer :

13


Explanation :
No Explanation available for this question
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