Preliminary Examination (প্রাথমিক পরীক্ষা): Foundations, Arithmetic, and Language
What the preliminary stage tests
The Preliminary Examination is a screening stage. It rewards speed plus accuracy across Bengali language and literature, English, elementary mathematics, general knowledge, and Bangladesh affairs. A candidate must understand three things: the syllabus boundaries, the marking pattern (typically multiple-choice with negative marking for wrong answers), and the time-per-question budget. Know the canonical facts: Bengali grammar terms such as সন্ধি, সমাস, কারক, and বাক্য প্রকরণ; the major poets and periods; English parts of speech, tense agreement, and idioms; arithmetic on percentages, ratio, average, profit-loss, and time-work; and Bangladesh geography, constitution, and liberation war milestones.
Traps that appear in questions
The commonest trap is the near-synonym distractor in Bengali grammar: সন্ধি joins sounds at a word boundary, while সমাস compresses a phrase into a compound - questions often swap the two. In arithmetic, watch for unit mismatches (metres versus kilometres, monthly versus annual rates) and for questions that ask for the original value after a percentage change rather than the change itself. In English, subject-verb agreement with collective nouns and with phrases such as 'one of the' catches many candidates. In general knowledge, dates and firsts (first constitution, first president, first Bengali novel) are frequently confused; anchor each fact to a single memorable event.
Rule of thumb and worked example
Rule of thumb: in any percentage problem, convert words into one equation before calculating. Example: a price rises by 20% then falls by 20%. A candidate who answers 'no change' is trapped. Take the original as 100. After a 20% rise the value is 120. A 20% fall applies to 120, giving 120 − 24 = 96. The net change is a 4% decrease, and the general rule is that a rise of x% followed by a fall of x% always yields a net loss of x²/100 percent. Apply the same discipline to negative marking: answer only when you can eliminate at least two options.