Discussion
Home ‣ Aptitude ‣ Odd Man Out and Series Comments
- Question
- 20, 21, 25, 34, 50,?, 111
Options- A. 70
- B. 65
- C. 60
- D. 75
- Correct Answer
- 75
ExplanationSeries pattern
20 + 12 = 21,
21 + 22 = 25,
25 + 32 = 34,
34 + 42 = 50,
50 + 52 = 75 Should come in place of ' ? '
75 + 62 = 111 - 1. 4, 2, 3.5, 7.5, 26.25, 118.125
Options- A. 118.125
- B. 26.25
- C. 3.5
- D. 2 Discuss
- 2. 16, 19, 21, 30, 46, 71, 107
Options- A. 19
- B. 20
- C. 30
- D. 46 Discuss
- 3. 2, 11, 38, 197, 1172, 8227, 65806
Options- A. 11
- B. 38
- C. 197
- D. 1172 Discuss
- 4. 165, 195, 255, 285, .... 435
Options- A. 340
- B. 341
- C. 345
- D. 401 Discuss
- 5. The 1st term of an HP is 1/17 and the product of the 2nd and 4th term equals to the products of 5th and 6th term of the HP. Find the 3rd term of the HP.?
Options- A. 1/7
- B. 1/14
- C. 1/35
- D. None of these Discuss
- 6. 62, 87, 187, 412, 812,?
Options- A. 1012
- B. 1437
- C. 1337
- D. 1457 Discuss
- 7. 13, 35, 57, 79, 911,?
Options- A. 1113
- B. 1123
- C. 1114
- D. 1124 Discuss
- 8. Two angles are supplementary and the ratio of the angels is 1:4. what is the value of smaller angle?
Options- A. 36 degree
- B. 45 degree
- C. 35 degree
- D. 72 degree Discuss
- 9. The complement of 30°20? is:
Options- A. 69°40?
- B. 59°40?
- C. 35°80?
- D. 159°40? Discuss
- 10. In the given, AB || CD. Then X is equal to:
Options- A. 93°
- B. 103°
- C. 83°
- D. 97° Discuss
Odd Man Out and Series problems
Search Results
Correct Answer: 3.5
Explanation:
Series pattern 4 x 0.5 = 2
2 x 1.5 = 3
Should come in place of 3.5
3 x 2.5 = 7.5
7.5 x 3.5 = 26.25
26.25 x 4.5 = 118.125
Clearly, 3.5 is wrong and is replaced by 3.
Correct Answer: 19
Explanation:
Series pattern
16 + 12 = 17
Should come in place of 19
17 + 22 = 21 ; 21+ 32 = 30;
30 + 42 = 46 ; 46 + 52 = 71
71 + 62 = 107
Clearly, 19 is wrong and will be replaced by 17.
Correct Answer: 1172
Explanation:
Series Pattern
2 x 3 + 5 = 11, 11 x 4 - 6 = 38
38 x 5 + 7 = 197, 197 x 6 - 8 = 1174
Should come in place of 1172
1174 x 7 + 9 = 8827
8827 x 8 - 10 = 65806
Clearly, 1172 is wrong and will be replaced by 1174.
Correct Answer: 345
Explanation:
Series Pattern
(15 x 11), (15 x 13), (15 x 17), (15 x 19), (15 x 23), (15 x 29)
? Missing term = (15 x 23) = 345
Correct Answer: 1/7
Explanation:
The 1st term of an HP is 1/17 .
Hence, for the corresponding AP, the terms is 17 .
Here, a = 17
nth term of an AP is given by Tn = a + (n -1)d
? T2 = 17 + d, T4 = 17 + 3d
T5 = 17 + 4d, T6 = 17 + 5d
? (17 + d) (17 + 3d) = (17 + 4d) (17 + 5d)
? 289 + 51d + 17d + 3d2 = 289 + 85d + 68d + 20d2
? 68d + 3d2 = 153d + 20d2
? 17d2 = -85d
? d = -5
? 3rd term is T3 = a + 2d = 17 + 2(-5)
= 17 - 10 = 7
Hence, for the corresponding HP, the 3rd term is 1/7.
Correct Answer: 1437
Explanation:
Series pattern
62 + 52 = 62 + 25 = 87
87 + 102 = 87 + 100 = 187
187 + 152 = 187 + 225 = 412
412 + 202 = 412 + 400 = 812
812 + 252 = 812 + 625 = 1437
Should come in place of '?'
Correct Answer: 1113
Explanation:
Series pattern
The elements of the given series are the numbers formed by joining together consecutive add numbers in order
i.e, 1 and 3, 3 and 5, 5 and 7, 7 and 9, 9 and 11,...
? Missing tern = Number formed by joining 11 and 13 = 1113
Correct Answer: 36 degree
Explanation:
As we know that the angles are supplementary so sum of angles will be 180 degree.
Let us assume that the ratio factor is r.
According to question,
Angles are supplementary and have a ratio of 1:4.
r + 4r = 180
? 5r = 180
? r = 180/5
? r = 36
Correct Answer: 59°40?
Explanation:
complement of 30°20? = 90° ? ( 30°20? ) = 90° ? ( 30° + 20? )
= (89° ? 30°) + (1° ? 20?)
= 59° + 60? ? 20? [ ? 1° = 60°?]
= 59° + 40? = 59°40?.
Correct Answer: 97°
Explanation:
Through O, draw a line l parallel to both AB and CD. Then
?1 = 45° (alt. ?S)
and ?2 = 30° (alt. ?S)
? ?BOC = ?1 + ?2 = 45° + 30° = 75°
So, X = 360° ? ?BOC = 360° ? 75° = 285°
Hence X = 285°.
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