Each of the numbers x1, x2, .....,xn, n > 4, is equal to 1 or -1. Suppose, x1x2x3x4 + x2x3x4x5 + x3x4x5x6 + ....... + xn-3xn-2xn-1xn + xn-2xn-1xnx1 + xn-1xnx1x2 + xnx1x2x3 = 0, then,

1.  n is even

2.  n is odd

3.  n is an odd multiple of 3

4.  n is prime

View Answer  
4
Correct Answer :

n is even


Explanation :
No Explanation available for this question

There are three cities A, B and C. Each of these cities is connected with the other two cities by at least one direct road. If a traveller wants to go from on city (origin) to another city (destination), she can do so either by traversing a road connecting the two cities directly, or by traversing two roads, the first connecting the origin to the third city and the second connecting the third city to the destination. In all there are 33 routes from A to B (including those via C). Similarly, there are 23 routes from B to C (including those via A). How many roads are there from A to C directly

1.  6

2.  3

3.  5

4.  10

View Answer  
4
Correct Answer :

6


Explanation :
No Explanation available for this question

If a/b = 1/3, b/c = 2, c/d = 1/2, d/c = 3 and e/f = 1/4, then what is the value of abc/def

1.  3/8

2.  27/8

3.  3/4

4.  27/4

5.  1/4

View Answer  
5
Correct Answer :

3/8


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

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.  121/2

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

A semi-circle is drawn with AB as its diameter. From C, a point on AB, a line perpendicular to AB is drawn meeting the circumference of the semi-circle at D. Given that AC = 2 cm and CD = 6 cm, the area of the semi-circle (in sq cm) will be

1.  32π

2.  50π

3.  40.5π

4.  81π

5.  undeterminable

View Answer  
5
Correct Answer :

50π


Explanation :
No Explanation available for this question

What is the weight of Praja's luggage

1.  20 kg

2.  25 kg

3.  30 kg

4.  35 kg

5.  40 kg

View Answer  
5
Correct Answer :

35 kg


Explanation :
No Explanation available for this question

What is the free luggage allowance

1.  10 kg

2.  15 kg

3.  20 kg

4.  25 kg

5.  30 kg

View Answer  
5
Correct Answer :

15 kg


Explanation :
No Explanation available for this question

A group of 630 children is arranged in rows for a group photograph session. Each row contains three fewer children than the row in front of it. What number of rows is not possible.

1.  3

2.  4

3.  5

4.  6

5.  7

View Answer  
5
Correct Answer :

6


Explanation :
No Explanation available for this question
Previous Next

Interview Questions

MongoDB
Java Script
Node JS
PHP
JQuery
Python