Logical Problems Questions and Answers
Practice ModeShowing 10 of 25 questions
Q11
A is taller than B, C is shorter than A, D is taller than C but shorter than B. Who is tallest?
Answer: Option A
Explanation: A > B, A > C, B > D > C. Combining: A > B > D > C. So A is tallest.
Q12
Find missing number: 3, 7, 16, 35, ?, 153
Answer: Option B
Explanation: Pattern: ×2+1, ×2+2, ×2+3, ×2+4, ×2+5. 3×2+1=7, 7×2+2=16, 16×2+3=35, 35×2+4=74, 74×2+5=153
Q13
If 5 people can complete a work in 10 days, how many days will 10 people take?
Answer: Option A
Explanation: More people, less time. Inverse proportion: 5×10 = 10×x → x=5 days
Q14
Pointing to a woman, a man said: "She is the daughter of my father's only daughter." How is the woman related to the man?
Answer: Option C
Explanation: My father's only daughter = my sister. Sister's daughter = niece.
Q15
Find the odd one out: 10, 25, 45, 54, 75, 80
Answer: Option C
Explanation: All numbers except 54 are divisible by 5. 54 is not divisible by 5.
Q16
If 20% of a number is 50, what is 40% of the same number?
Answer: Option B
Explanation: 20% = 50, so 100% = 250. Then 40% of 250 = 100
Q17
A man walks 5 km south, then 3 km east, then 5 km north. How far is he from starting point?
Answer: Option A
Explanation: He walks south 5km, east 3km, north 5km - back to same latitude, but 3km east. So 3km from start.
Q18
Complete the series: Z, X, V, T, R, ?
Answer: Option A
Explanation: Alphabet backwards skipping one: Z(-2)→X(-2)→V(-2)→T(-2)→R(-2)→P
Q19
If 20% of x = 30% of y, then x:y = ?
Answer: Option B
Explanation: 20% x = 30% y → 0.2x = 0.3y → x/y = 0.3/0.2 = 3/2 → x:y = 3:2
Q20
Find the missing number: 2, 5, 10, 17, 26, ?
Answer: Option B
Explanation: Pattern: +3, +5, +7, +9, +11. So 26 + 11 = 37