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Data Sufficiency Practice Questions with Detailed Solutions – Level 2

Medium-level Data Sufficiency questions in the two-statement format, where you judge whether statement I, statement II or both settle the answer, each with a worked solution.

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Choose Normal practice or a Simulated test.

Questions, answer key and solutions.

Questions
50
Duration
50 min
Marks
50

Negative marking

Attempts
100
Access
Free
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Normal practice, or a Simulated test

Both use the same questions. Normal practice is untimed and needs no account: choose an option and the answer and solution appear at once. The Simulated test is the real computer-based format, with one 50-minute clock, a question palette and full screen, and your score, the key and the solutions arrive when you submit.

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How the two modes differ
No account needed

Normal

Untimed

Every question on one page, loading as you scroll. Choose an option and see straight away whether it was right.

  • No timer. Nothing to start and nothing to submit. Stop whenever you like.
  • Answered as you choose. Tap an option and it is marked at once, with the correct answer shown.
  • Solutions in place. The explanation, and the video where one has been added, sit under the question.
  • Open to guests. Normal practice needs no sign-in.
Real exam conditions

Simulated

Timed CBT

The computer-based test format: one clock, a question palette, and a score the moment you submit.

  • A clock that does not pause. 50 minutes from the moment you begin, and the paper is submitted for you when it reaches zero.
  • Question palette. Answered, not answered and marked for review, section by section, as the real interface has it.
  • Full screen, proctored. The test takes over the screen; leaving it three times submits the paper.
  • Answers hidden until you submit. The key, the explanations and your score all arrive together at the end.

About this test

Data Sufficiency Level 2 Reasoning Practice Questions with Solutions

Aimed at reasoning aspirants who know the basics, this Level 2 set on Aptitude360 is a Data Sufficiency practice quiz. Each problem gives a question followed by two statements, numbered I and II, and asks whether the data in them is enough to answer it. Every question has a worked solution explaining why each statement does or does not settle the answer.

What this Data Sufficiency set tests

  • Judging whether statement I on its own is enough to answer the question
  • Judging whether statement II on its own is enough to answer the question
  • Deciding whether either statement alone works, whether both are needed together, or whether even both fall short
  • Telling apart data that fixes one definite answer from data that leaves several possibilities

Key concepts to revise for Data Sufficiency

  • Test each statement alone first, then combine them only if neither works on its own
  • Data is sufficient only when it gives one unique answer, not a set of possibilities
  • A clear yes or a clear no both count as sufficient for a yes-or-no question
  • Information in the question stem may be used with each statement, but one statement must not borrow facts from the other

Preparation tips for statement-based reasoning

  • Note exactly what the question asks before reading the statements, so you know what a complete answer looks like
  • Work out each statement on a fresh rough sketch so details from one do not leak into the other
  • Stop working once sufficiency is clear; you do not need the final value
  • Before choosing neither, check whether combining both statements removes the remaining possibilities

Who should practise this Level 2 set

It is meant for aspirants preparing logical reasoning who have finished the basic level and are ready for medium-difficulty Data Sufficiency problems.

FAQs about Data Sufficiency Practice Questions with Detailed Solutions – Level 2

What is data sufficiency in reasoning?
Data sufficiency is a question type where you are given a question and two statements. You do not solve the question fully. You only decide whether the statements provide enough information to answer it.
How to solve data sufficiency questions?
Check the first statement alone, then the second statement alone. If neither is enough, combine them. Choose the option that matches which statements give a unique answer.
What are the options in data sufficiency questions?
The usual choices are: the first statement alone is sufficient, the second statement alone is sufficient, either statement alone is sufficient, neither is sufficient even together, or both together are sufficient.
Do you need to find the final answer in data sufficiency?
No. You only need to know whether a single definite answer can be reached. Stopping once sufficiency is clear saves time.

Test structure

How the paper is split, and how long each part runs. A section you have finished cannot be returned to.

SectionQuestionsTime
Data Sufficiency Level 25050 min

Marking & rules

Total marks
50 across 50 questions.
Negative marking
A wrong answer costs marks. Leaving a question unanswered costs nothing.
Attempts
100 in total. An attempt is spent the moment you begin one.

What you get when you submit

The analysis is ready the moment you submit the paper.

Score and accuracy

Marks, percentage, right, wrong and skipped, and the time you took.

Section by section

The same figures for each section, so a weak one cannot hide in an average.

The full answer key

Every question with your answer, the right one, the working, and the video where there is one.

Where you stand

Your score against the spread of everyone else who has sat this test.

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