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# Placement Questions & Answers :: IBM

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#### Co. Cloud

Not Attempted

51. A man standing at a point P is watching the top of a tower, which makes an angle of elevation of 30 with the man's eye. The man walks some distance towards the tower to watch its top and the angle of the elevation becomes 60. What is the distance between the base of the tower and the point P ?

Explanation:

Here is no explanation for this answer

Tags: IBM

Not Attempted

52. The average of 20 numbers is zero. Of them, at the most, how many may be greater than zero?

Explanation:

Average of 20 numbers = 0. Sum of 20 numbers (0 x 20) = 0. It is quite possible that 19 of these numbers may be positive and if their sum is a then 20th number is (-a).

Tags: IBM

Not Attempted

53. Find the next term of the following series. 325, 259, 204, 160, 127, 105, ?

Explanation:

```
The pattern is -66, -55, -44, -33, -22,```

```
So, missing term = 105-11 = 94.```

Tags: IBM

Not Attempted

54. Find the wrong number in the given series.
3, 4, 10, 32, 136, 685, 4116

Explanation:

Here is no explanation for this answer

Tags: IBM

Not Attempted

55. Find the wrong number in the given series.
1, 5, 5, 9, 7, 11, 11, 15, 12, 17

Explanation:

Here is no explanation for this answer

Tags: IBM

Not Attempted

56. Find the wrong number in the given series.
93, 309, 434, 498, 521, 533

Explanation:

Here is no explanation for this answer

Tags: IBM

Not Attempted

57. Find the next term of the following series.
1,2,3,2,4,6,4,8,_____?

Explanation:

Here is no explanation for this answer

Tags: IBM

Not Attempted

58. Find the next term of the following series.
23,8,34,81,33,_____?

Explanation:

Here is no explanation for this answer

Tags: IBM

Not Attempted

59. Find the next term of the following series.
0,1,2,0.5,2,3,5,1,2,0,2,1,4,2,3,?

Explanation:

Here is no explanation for this answer

Tags: IBM

Not Attempted

60. Find the next term of the following series.
2.2,5.5,8,36,40.5,263.25,?

Explanation:

5.5 = 2.2 * 2.5
8 = 5.5 + 2.5
36 = 8 * 4.5
40.5 = 36 + 4.5
263.25 = 40.5 * 6.5
The next number should be: 263.25 + 6.5 = 269.75.