A merchant buys an item for ₹80 and sells it for ₹100. What is the profit percentage?
Profit = 100 - 80 = 20. Profit% = (20/80) × 100 = 25%
In a race, Ravi runs faster than Mohan but slower than Rahul. Raj runs faster than Ravi. Who is the fastest?
A
Mohan
B
Ravi
C
Rahul
D
Cannot be determined
Correct Answer:
D. Cannot be determined
Order: Mohan < Ravi < Rahul and Ravi < Raj. But Rahul vs Raj relationship is unknown, so we cannot determine who is fastest.
What percentage is 45 out of 180?
Pointing to a man, a woman says 'His mother is my mother's daughter.' Who is the man to the woman?
A
Son
B
Brother
C
Husband
D
Father
Mother's daughter = the woman herself. So the man's mother is the woman. Therefore, the man is her son.
Which letter comes next? A, C, E, G, I, ?
Alternate letters in the alphabet. A(1), C(3), E(5), G(7), I(9), K(11)
A is 5 years older than B. B is 3 years younger than C. If the sum of their ages is 35, what is A's age?
A
10 years
B
12 years
C
14 years
D
16 years
Correct Answer:
C. 14 years
Let B = x. Then A = x+5, C = x+3. (x+5) + x + (x+3) = 35. 3x + 8 = 35. x = 9. A = 14 years
What is the missing number? 15, 30, 60, 120, ?, 480
Each number is multiplied by 2. 15×2=30, 30×2=60, 60×2=120, 120×2=240, 240×2=480
If 12 men can complete a work in 9 days, in how many days can 18 men complete the same work?
A
4 days
B
6 days
C
8 days
D
13.5 days
Correct Answer:
B. 6 days
Total work = 12 × 9 = 108 man-days. With 18 men: 108/18 = 6 days
Arrange in order: Alphabet, Letter, Word, Sentence
A
Alphabet, Letter, Word, Sentence
B
Letter, Alphabet, Word, Sentence
C
Letter, Word, Alphabet, Sentence
D
Alphabet, Letter, Sentence, Word
Correct Answer:
B. Letter, Alphabet, Word, Sentence
Order from smallest to largest unit: Letter, Word, Sentence, Alphabet (or Alphabet comes first as the collection). Correct is: Letter, Alphabet, Word, Sentence based on composition.
A train 150 m long passes a pole in 15 seconds. What is its speed in km/h?
A
36 km/h
B
40 km/h
C
50 km/h
D
45 km/h
Correct Answer:
A. 36 km/h
Speed = 150/15 = 10 m/s = 10 × 3.6 = 36 km/h
