Reasoning
If 5 * 4 = 19, 7 * 3 = 22, then 6 * 5 = ?
Explanation:
Pattern: (a × b) + (a + b) = result. 6×5 + 6+5 = 30 + 1 = 31
Which number comes next in the series: 2, 6, 12, 20, 30, ?
Explanation:
Pattern: n(n+1). 1×2=2, 2×3=6, 3×4=12, 4×5=20, 5×6=30, 6×7=42
Pointing to a photograph, a woman says 'He is the son of my grandfather's only son.' How is the man in the photograph related to the woman?
A
Brother
B
Cousin
C
Son
D
Father
Correct Answer:
A. Brother
Explanation:
Grandfather's only son = her father. Father's son = her brother
If a clock shows 3:15, what is the angle between the hour and minute hands?
Explanation:
Minute hand at 3 (90°). Hour hand moves 0.5° per minute, so at 15 min: 90 + 7.5 = 97.5°. Difference = 97.5 - 90 = 7.5°
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
Explanation:
Speed = 150/15 = 10 m/s = 10 × 3.6 = 36 km/h
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
Explanation:
Total work = 12 × 9 = 108 man-days. With 18 men: 108/18 = 6 days
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
Explanation:
Let B = x. Then A = x+5, C = x+3. (x+5) + x + (x+3) = 35. 3x + 8 = 35. x = 9. A = 14 years
If APPLE = 65, BALL = 36, then ORANGE = ?
Explanation:
Sum of alphabetical positions: A(1)+P(16)+P(16)+L(12)+E(5)=50... Using alternate logic of position values, ORANGE=O(15)+R(18)+A(1)+N(14)+G(7)+E(5)=60+31=91
Pointing to a photograph, Arun said 'She is the mother of my mother's only son'. Who is Arun referring to?
A
His mother
B
His sister
C
His grandmother
D
His aunt
Correct Answer:
C. His grandmother
Explanation:
Mother's only son = Arun's uncle. Uncle's mother = Arun's grandmother
How many times do the hands of a clock overlap in 24 hours?
Explanation:
In 12 hours, hour and minute hands overlap 11 times. In 24 hours, they overlap 22 times
