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Placement Questions & Answers :: IBM

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1. Find the next term of the following series.
16,15,18,17,20,19,22,?

Answer: 21

Explanation:

Break the series as below
16,15 - 18,17 - 20,19 - 22,21

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2. Find the next term of the following series.
6,7,26,6,7,24,6,7,?

Answer: 22

Explanation:

Break the series as below
6,7/26/6,7/24/6,7/22 --- (-2)

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IBM Infosys 

3. Find the next term of the following series.
16,17,14,18,19,14,20,21,14,?

Answer: 22

Explanation:

16,17 / 14 / 18,19 / 14 / 20,21 / 14, / 22

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4. Find the next term of the following series.
10,11,12,18,19,13,14,15,18,19,?

Answer: 16

Explanation:

10,11,12 / 18,19 / 13,14,15 / 18,19 / 16

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5. Find the next term of the following series.
5,5,6,6,8,8,11,11,?

Answer: 15

Explanation:

5,5 / 6,6 / 8,8 / 11,11 / 15
+1 , +2, +3, +4

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6. Find the next term of the following series.
5,5,7,7,9,9,11,11,?

Answer: 13

Explanation:

Break the series as below
5,5 / 7,7 / 9,9 / 11,11 / 15 -> +2

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7. Find the next term of the following series.
1, 1, 3, 9, 11, 121,?

Answer: 123

Explanation:

1*1=1, 1+2=3, 3*3=9, 9+2=11, 11*11=121, 121+2=123

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

Answer: 12

Explanation:

Divide the series as below
1,2,3 / 2,4,6 / 4,8,12

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9. Find the next term of the following series.
32,32,33,32,33,35,35,36,35,?

Answer: 36

Explanation:

32,32 / 33,32,33 / 35,35 / 36,35,36

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10. 

Find the next term of the following series.



11,17,-6,-13,24,30,-19,-26,?


Answer: 37

Explanation:

Split the series as below



11,17 | -6,-13 | 24,30 | -19,-26 | 37



11+6=17



17+7=24



24+6=30



30+7 = 37

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