Key takeaways
- DILR accuracy comes from method, not speed: read the whole set, build a table, then answer.
- Practise two to three sets a day with a timer and review every set, including those you skipped.
- Keep a log of why you missed each question: misread, wrong table or wrong calculation.
- Raise difficulty and speed only after accuracy is steady.
Many CAT aspirants treat DILR as a speed test and lose marks to careless mistakes. In reality the section rewards accurate set solving and good judgment about which sets to attempt. If you want to improve accuracy, build a routine for how you read, organise and check a set. This guide gives one you can start today, to be used together with our set selection strategy.
Step 1: read the whole set before you solve
Read every condition and every question stem before writing anything. Many sets give a condition in the middle of the text that changes everything. Reading first stops you from building a table that you later have to redo.
Step 2: draw the skeleton
Draw the structure that fits the set: a grid for arrangements, a table for data, a timeline for schedules and a tree for selections. Label rows and columns before you enter facts. A clear skeleton lets you place facts quickly and see which cases remain.
Step 3: place sure facts first, then branch
Enter the definite facts, then the conditions that fix a position, and only branch where a condition leaves a real choice. Write each branch next to the table and cross it out as soon as it fails. Do not guess.
Step 4: check against every condition
Before you answer, run the final arrangement against each condition once. This takes under a minute and catches most careless mistakes. For data sets, recompute the one number that most answers depend on.
Step 5: review every set the same way
| Reason for the mistake | What to do next time |
|---|---|
| Misread a condition | Underline key words such as exactly, at least, not adjacent |
| Wrong skeleton | Practise choosing the table or grid type for each set type |
| Wrong calculation | Slow down on the calculation that most answers depend on |
| Gave up too soon | Set a time limit and note where the set was opening up |
| Went too deep on a hard set | Practise skipping after eight minutes and moving on |
A weekly plan
- Monday to Friday: two to three sets a day, each timed, one new set type per day.
- Saturday: one full DILR section of 40 minutes, then a long review.
- Sunday: redo the three sets you found hardest, without looking at the solution.
- Every week: add the types you struggled with to the front of the next week.
Practise the types on our CAT topic pages for tables, arrangements and scheduling, then try the DILR practice tests. When accuracy is steady, test pacing with the full length mocks.
Frequently asked questions
How many DILR sets should I practise a day?
Two to three sets with a thorough review is better than six sets with none. Increase the number once your accuracy is above about 80 percent.
Should I solve every set in the section?
No. Scan the sets, choose the clearest ones first and skip any that is not opening up. Set selection is part of the skill.
What if I keep making calculation mistakes?
Slow down on the one calculation most answers depend on, and write intermediate values next to the table.
How do I get faster without losing accuracy?
Speed comes from recognising set types. Practise one type at a time until the skeleton is automatic.