IBM Placement Questions & Answers :: IBM

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Total Qs: 436+

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Choose the correct option.

A' and 'B' complete a work togather in 8 days.If 'A' alone can do it in 12 days.Then how many day 'B' will take to complete the work?


A25 days

B24 days

C20 days

DNone of these

 View Answer |  Submit Your Solution | Important Formulas | Topic: Time and Work | Asked In AccentureAdobeAlcatel-LucenteLitmus5 |

Answer: Option B

Explanation:

A & B one day work = 1/8
A alone one day work = 1/12
B alone one day work = (1/8 - 1/12) = ( 3/24 - 2/24)
=> B one day work = 1/24
so B can complete the work in 24 days.

ShortCut By :: Aradhya

 A = 12, A+B = 8, B = ?

Take LCM of A & A+B = 24.

So, A=12*2 = 24, A+B = 8*3 = 24, B = 1*24 = 24.

Answer: B = 24days.

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


A23

B22

C20

D21

E24

Answer: Option D

Explanation:

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

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


A22

B7

C19

D23

E6

Answer: Option A

Explanation:

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

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


A22

B23

C14

D21

E15

Answer: Option A

Explanation:

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

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


A18

B19

C15

D14

E16

Answer: Option E

Explanation:

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

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


A26

B11

C17

D20

E15

Answer: Option E

Explanation:

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

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


A9

B11

C15

D14

E13

Answer: Option E

Explanation:

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

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


A123

B125

C127

D141

E132

Answer: Option A

Explanation:

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

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


A16

B8

C10

D12

E6

Answer: Option D

Explanation:

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

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


A33

B35

C36

D39

E37

Answer: Option C

Explanation:

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

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