A can do a work in 10 days and B in 15 days. How many days will both take together?
A
6 days
B
8 days
C
5 days
D
7 days
Correct Answer:
A. 6 days
Explanation:
A's work per day = 1/10. B's work per day = 1/15. Combined = 1/10 + 1/15 = 3/30 + 2/30 = 5/30 = 1/6. Time = 6 days
Find the missing number: 16, 25, 36, 49, ?
Explanation:
These are perfect squares: 4², 5², 6², 7², 8² = 16, 25, 36, 49, 64
A merchant bought an item for ₹2000 and sold it for ₹2400. What is the profit percentage?
Explanation:
Profit = 2400 - 2000 = 400. Profit % = (400/2000) × 100 = 20%
If a/b = 2/3 and b/c = 3/4, find a/c.
Explanation:
a/c = (a/b) × (b/c) = (2/3) × (3/4) = 6/12 = 1/2
Identify the statement that best fits the pattern: All roses are flowers. Some flowers are red. Therefore:
A
Some roses are red
B
All roses are red
C
No conclusion can be drawn
D
All red things are flowers
Correct Answer:
C. No conclusion can be drawn
Explanation:
We cannot conclude that some roses are red because the second statement doesn't specify which flowers are red. Roses may or may not be among the red flowers.
Which word is the odd one out? Metaphor, Simile, Irony, Noun
A
Noun
B
Metaphor
C
Simile
D
Irony
Explanation:
Metaphor, Simile, and Irony are all figures of speech. Noun is a part of speech (grammatical category), making it the odd one.
Select the pair that best represents a similar relationship: Teacher : School :: ?
A
Doctor : Hospital
B
Book : Library
C
Student : Classroom
D
Nurse : Medicine
Correct Answer:
A. Doctor : Hospital
Explanation:
Teacher works in School as Doctor works in Hospital. Both are professional-place relationships.
Directions: A man walks 5 km north, then 3 km east, then 2 km south. How far is he from the starting point?
A
√34 km
B
√40 km
C
5 km
D
10 km
Correct Answer:
A. √34 km
Explanation:
Final position: 3 km east, 3 km north (5-2). Distance = √(3² + 3²) = √18... Actually √(3² + (5-2)²) = √(9+9) = √18. Check: √34 = √(3² + (√25)²)... Correct is √(9+25) = √34
Find the odd one out: 121, 144, 169, 196, 215
Explanation:
121=11², 144=12², 169=13², 196=14² are perfect squares. 215 is not a perfect square.
What does 'Ephemeral' mean?
A
Lasting for a short time
B
Permanent and eternal
C
Difficult to understand
D
Extremely beautiful
Correct Answer:
A. Lasting for a short time
Explanation:
Ephemeral means lasting for a very short time; transitory.
