Data Sufficiency Questions and Answers

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Q31
What is the ratio of A:B?
  • A I
  • B II
  • C Both
  • D NeitherStatements:I. A = 3x, B = 4xII. A - B = -x
Answer: Option A
Explanation: I alone gives ratio 3:4. II alone insufficient.
Q32
Is X a prime number?
  • A I
  • B II
  • C Both
  • D NeitherStatements:I. X has only two factors.II. X is an odd number.
Answer: Option A
Explanation: I directly defines a prime. II insufficient.
Q33
Is the train late?
  • A I
  • B II
  • C Both
  • D NeitherStatements:I. The scheduled time is 5 PM.II. The train arrived at 5:20 PM.
Answer: Option C
Explanation: Need both schedule time & arrival time to know delay.
Q34
Is the number divisible by 9?
  • A I
  • B II
  • C Both
  • D NeitherStatements:I. Sum of digits = 18II. Number ends in 0
Answer: Option A
Explanation: Digit sum 18 -> divisible by 9. II irrelevant.
Q35
Which direction is Ramesh facing?
  • A I
  • B II
  • C Both
  • D NeitherStatements:I. He turned right from facing north.II. Then he turned right again.
Answer: Option C
Explanation: Combined: north -> east -> south. So face = south.
Q36
Is the word a noun?
  • A I
  • B II
  • C Both
  • D NeitherStatements:I. The word denotes a place.II. The word is used as a subject in the sentence.
Answer: Option C
Explanation: Place indicates noun; subject also supports it.
Q37
Is the series in ascending order?
  • A I
  • B II
  • C Both
  • D NeitherStatements:I. Every term is greater than the one before it.II. Last term is largest.
Answer: Option A
Explanation: I alone confirms ascending. II alone insufficient.
Q38
What is the speed of the car?
  • A I
  • B II
  • C Both
  • D NeitherStatements:I. Distance = 120 kmII. Time = 2 hours
Answer: Option C
Explanation: Need both distance & time.
Q39
Is the student passed?
  • A I
  • B II
  • C Both
  • D NeitherStatements:I. Student scored 42 marks.II. Passing marks are 35.
Answer: Option C
Explanation: Need score & pass criteria.
Q40
Is the number a perfect square?
  • A I
  • B II
  • C Both
  • D NeitherStatements:I. The number ends in 6.II. Sum of digits is 9.
Answer: Option D
Explanation: Both conditions do not guarantee perfect square.
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