Showing 1–10 of 23 questions
Two pipes A and B can fill a tank in 12 hours and 15 hours respectively. If both pipes are opened together, how long will it take to fill the tank?
A
6.67 hours
B
6 hours
C
7.5 hours
D
8 hours
Correct Answer:
A. 6.67 hours
Explanation:
Rate of A = 1/12, Rate of B = 1/15. Combined rate = 1/12 + 1/15 = 5/60 + 4/60 = 9/60 = 3/20. Time = 20/3 = 6.67 hours
If A:B = 3:4 and B:C = 5:6, what is A:B:C?
A
15:20:24
B
3:4:5
C
3:5:6
D
12:16:20
Correct Answer:
A. 15:20:24
Explanation:
A:B = 3:4 (multiply by 5) = 15:20. B:C = 5:6 (multiply by 4) = 20:24. So A:B:C = 15:20:24
Find the odd one out: 15, 20, 25, 30, 35, 40, 45, 55
Explanation:
All numbers except 55 are multiples of 5 with a difference of 5. The difference before 55 is 10 instead of 5
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
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
Explanation:
POST requires two different letters not in STOP (needs T, O, P, S but POST needs different arrangement). All others are valid anagrams
What should come next in the series? A, B, D, G, K, ?
Explanation:
Pattern: A(0), B(+1)=1, D(+2)=3, G(+3)=6, K(+4)=10, P(+5)=15. Each gap increases by 1
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
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
Which sentence is grammatically correct?
A
Each of the students have completed their assignments.
B
Each of the students has completed their assignment.
C
Each of the students have completed his or her assignments.
D
All of the students has completed their assignments.
Correct Answer:
B. Each of the students has completed their assignment.
Explanation:
'Each' is singular, so 'has' is correct. 'Their assignment' (singular) matches with 'each'
Find the synonym of 'EPHEMERAL':
A
Permanent
B
Transient
C
Durable
D
Eternal
Correct Answer:
B. Transient
Explanation:
'Ephemeral' means lasting for a very short time. 'Transient' is the closest synonym
