Data Sufficiency
Decide whether statement I, statement II, both or neither are enough to answer questions on days, positions in a row, ages, directions, numbers and heights: 6 bilingual sets.
Topics Covered in Data Sufficiency
Data Sufficiency Practice Tests
Data Sufficiency Practice Set 01
Data Sufficiency Practice Set 02
Data Sufficiency Practice Set 03
Data Sufficiency Practice Set 04
Data Sufficiency Practice Set 05
Data Sufficiency Practice Set 06
Smart Practice Path
Start with Easy, move to Medium, and challenge yourself with Hard test results.
Why Practice Data Sufficiency?
- Tests whether the data are enough, not the final answer
- Each answer was checked by counting every case that each statement leaves open
- Each set is 15 questions in 12 minutes with 1/3 negative marking
Concepts You Will Master
- Check statement I alone, then statement II alone, then both together
- Data are sufficient only when exactly one answer is left
- Two statements that say the same thing in different words do not add information
- Position from the left = total − position from the right + 1
- Direction needs both the north-south and the east-west displacement
- A two-digit number is fixed by its two digits; a digit sum or digit difference alone usually is not enough
Preparation Tip
Do not solve the question fully. Ask only whether a single answer is possible from statement I, from statement II and from both. Stop as soon as you know.
Explore Other Reasoning Topics
About Data Sufficiency
Data Sufficiency questions give a question and two statements. You decide whether the statements are enough to answer it. These six sets use day puzzles, positions in a row, ages, directions, two-digit numbers and height comparisons. The explanation of every question lists what each statement alone leaves open and what both together leave.
FAQs
There are 6 sets: 2 easy, 2 medium and 2 hard. Each set has 15 questions and a 12-minute timer.
Each correct answer gives 1 mark and each wrong answer deducts 1/3 mark, the same as RRB NTPC CBT 1.
Yes. Every question can be attempted in English or Hindi, and solutions are given in English, Hindi and Hinglish.
When each statement by itself gives exactly one answer. You do not need both together in that case.
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