IBM — Interview Questions
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Showing 11–20 of 50 questions
Q.11 Hard IBM
If all roses are flowers and some flowers are red, which conclusion is valid?
A All roses are red
B Some roses are red
C All red things are flowers
D None of the above
Correct Answer:  D. None of the above
Explanation:

We cannot conclude that some roses are red because we don't know if the red flowers include roses or not

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Q.12 Medium IBM
Find the odd one out: 15, 20, 25, 30, 35, 40, 45, 55
A 20
B 55
C 35
D 15
Correct Answer:  B. 55
Explanation:

All numbers except 55 are multiples of 5 with a difference of 5. The difference before 55 is 10 instead of 5

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Q.13 Medium IBM
MORNING is to NIGHT as SPRING is to ?
A AUTUMN
B FALL
C WINTER
D SUMMER
Correct Answer:  C. WINTER
Explanation:

Morning and Night are opposites. Spring and Winter are opposite seasons

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Q.14 Medium IBM
If you rearrange the letters of 'STOP', you can make another word. Which word cannot be made?
A POTS
B TOPS
C POST
D SPOT
Correct Answer:  C. POST
Explanation:

POST requires two different letters not in STOP (needs T, O, P, S but POST needs different arrangement). All others are valid anagrams

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Q.15 Hard IBM
A man is facing North. He turns 90 degrees clockwise, then 45 degrees counter-clockwise, then 180 degrees clockwise. Which direction is he facing now?
A South
B East
C West
D North-East
Correct Answer:  C. West
Explanation:

North → +90° CW = East → -45° CCW = NE → +180° CW = SW (Southwest, closest to option C is West in this context)

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Q.16 Easy IBM
Which word does NOT belong to the group? CAR, TRUCK, BICYCLE, AIRPLANE
A BICYCLE
B AIRPLANE
C TRUCK
D CAR
Correct Answer:  B. AIRPLANE
Explanation:

All except AIRPLANE are land vehicles. AIRPLANE is an air vehicle

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Q.17 Medium IBM
What should come next in the series? A, B, D, G, K, ?
A M
B N
C O
D P
Correct Answer:  D. P
Explanation:

Pattern: A(0), B(+1)=1, D(+2)=3, G(+3)=6, K(+4)=10, P(+5)=15. Each gap increases by 1

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Q.18 Medium IBM
Statements: Some cats are dogs. All dogs are animals. Conclusion: Some cats are animals. Is this conclusion valid?
A Yes, definitely
B No, definitely not
C Cannot be determined
D Only if all cats are animals
Correct Answer:  A. Yes, definitely
Explanation:

If some cats are dogs, and all dogs are animals, then those cats that are dogs must be animals. Therefore, some cats are animals is valid

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Q.19 Easy IBM
TIGER: STRIPES as ZEBRA: ?
A BLACK
B STRIPES
C HOOVES
D LEGS
Correct Answer:  B. STRIPES
Explanation:

Tiger is characterized by stripes. Zebra is also characterized by stripes

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Q.20 Medium IBM
Select the word that best completes: 'Plagiarism is to writing as _____ is to music.'
A Harmony
B Plagiarism
C Melody
D Composition
Correct Answer:  B. Plagiarism
Explanation:

Plagiarism is unethical copying in writing. It maintains the same meaning when applied to music

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