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Delhi Police Reasoning and Maths: repair the method before timing it

A focused Delhi Police Constable practice method for Reasoning and Numerical Ability: identify the question family, write the first step, then earn speed.

By ExamGrind Editorial Desk6 min readUpdated 6 September 2026

This preparation guide is written by ExamGrind's editorial desk. Official notices and source records are linked below whenever an exam rule, date or requirement needs verification.

Name the question family before you solve

A series, a direction question and a percentage problem do not fail for the same reason. Before looking at options, name the family and write the first action: create a direction sketch, find the percentage base, build a small table, or identify the series rule. This makes the method visible before time pressure hides the error.

If you cannot name the first action, you have found a concept gap. If you can name it but make the setup wrong, you have found an application gap. These need different repairs.

Practise in three passes

First pass: solve five fresh questions untimed and write the first step. Second pass: solve a similar short set with a reasonable cap. Third pass: mix the question family with other topics so you must recognise it yourself. Skipping straight to timing encourages guessing and makes a weak route feel like a speed problem.

Keep one line for every repeat error: ‘I used the final value as the percentage base’ or ‘I reversed left and right after turning.’ A precise error note is a repair instruction.

A skip can be a good decision

Not every question belongs in your first pass. If your method is still long after a few seconds, mark it and protect time for questions with a clear entry route. Come back only after the rest of the set. Efficient attempts are built through choices, not panic.

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Speed appears after you recognise the question family and trust the first step—not before.

When you are ready, use a focused Delhi Police Constable diagnosis to turn your own attempts into the next specific repair.

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