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Which 25 of these 40 would you attempt?

A real Part B — CSIR NET June 2024, all forty questions, in the order they were printed. You may attempt twenty-five. You will not answer any of them. Read each stem, decide whether it is one of yours, and move on.

The rule that makes this matter. If you answer more than 25, the evaluation takes the first 25 in paper order and discards the rest — however well you did them. So answering everything is not generosity to yourself; it hands the choice of what to throw away to the numbering of the paper.
Question 1 of 40attempted 0 / 250:00

Part B · question 1

Consider the set A = {xQ:0<(21)x<2+1x \in \mathbb{Q} : 0 < (\sqrt{2} - 1)x < \sqrt{2} + 1} as a subset of R\mathbb{R}. Which of the following statements is true?

Judge it in a few seconds — could you do this one, under time, with 0.75 at stake for a wrong answer? Do not solve it.

Why this is not in any test series

Because they hand you exactly the number you are allowed to attempt. It is a reasonable simplification, and it removes the decision completely — so for most candidates the first time they have to choose what to leave blank is in the hall, against a clock, with the rule working against them. The exam pattern guide sets out the marking scheme this drill is built on.

Common questions

What happens if I attempt more than 25 questions in Part B?
The evaluation takes the first 25 you answered in paper order and discards the rest, regardless of how well you did them. Answering everything does not earn you the best 25 — it hands the choice of which to discard to the numbering of the paper.
Why does this drill not let me answer the questions?
Because the skill it isolates is selection, and showing the options invites solving. Reading a stem and judging whether it is one of yours is what the first minutes of the real paper consist of, and it is the part no test series practises.
How many questions can I attempt in each part of CSIR NET?
15 of 20 in Part A, 25 of 40 in Part B and 20 of 60 in Part C — 60 attempts across 120 questions, for 200 marks.