The sum of 3rd and 15th elements of an arithmetic progression is equal to the sum of 6th, 11th and 13th elements of the same progression. Then which element of the series should necessarily be equal to zero  

1.  1st

2.  9th

3.  12 th

4.  None of the above.

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4
Correct Answer :

12 th


Explanation :
No Explanation available for this question

Let p and q be the roots of the quadratic equation x2 – (α- 2) x - α - 1 = 0. What is the minimum possible value of p2 + q2

1.  0

2.  3

3.  4

4.  5

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4
Correct Answer :

5


Explanation :
No Explanation available for this question

The 288th term of the series a, b, b, c, c, c, d, d, d, d, e, e, e, e, e, f, f, f, f, f, f…. is

1.  u

2.  v

3.  w

4.  x

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4
Correct Answer :

x


Explanation :
No Explanation available for this question

There are two concentric circles such that the area of the outer circle is four times the area of the inner circle. Let A, B and C be three distinct points on the perimeter of the outer circle such that AB and AC are tangents to the inner circle. If the area of the outer circle is 12 square centimeters then the area (in square centimeters) of the triangle ABC would be

1.  

2.  

3.  

4.  

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4
Correct Answer :


Explanation :
No Explanation available for this question

How many three digit positive integers, with digits x, y and z in the hundred’s, ten’s and unit’s place respectively, exist such that x < y, z < y and x 0  

1.  245

2.  285

3.  240

4.  320

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4
Correct Answer :

240


Explanation :
No Explanation available for this question

In the figure given below, AB is the chord of a circle with center O. AB is extended to C such that BC = OB. The straight line CO is produced to meet the circle at D. If ACD = y0 and AOD = x0such that x = ky, then the value of k is

1.  3

2.  2

3.  1

4.  None of the above

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4
Correct Answer :

3


Explanation :
No Explanation available for this question

If log32, log3(2x – 5), log3(2x – 7/2) are in arithmetic progression, then the value of x is equal to

1.  5

2.  4

3.  2

4.  3

View Answer  
4
Correct Answer :

3


Explanation :
No Explanation available for this question

Which of the following has most number of divisors

1.   99

2.  101

3.  176

4.  182

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4
Correct Answer :

176


Explanation :
No Explanation available for this question

A girl wrote all the numbers from 100 to 200. Then she started counting the number of one's that has been used while writing all these numbers. What is the number that she got

1.  111

2.  119

3.  120

4.  121

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4
Correct Answer :

120


Explanation :
No Explanation available for this question

If each of the three nonzero numbers  a ,  b , and  c  is divisible by 3, then  abc  must be divisible by which one of the following the numbers

1.  8

2.  27

3.  81

4.  121

View Answer  
4
Correct Answer :

27


Explanation :
No Explanation available for this question
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