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Question 281

RRB Section Controller 2026• Test

If the perimeter of a square and rectangle are 40 cm each and the difference in their areas is 4 cm\(^2\), find the difference between the length and breadth of the rectangle (in cm).

  1. AOption (a)

    4

  2. BOption (b)

    6

  3. COption (c)

    2

  4. DOption (d)

    8

View answer & explanation

Correct answer

Answer: (a)A.

4

Explanation not yet available.

Question 282

RRB Section Controller 2026• Test

The circumference of the base of a cylindrical vessel is 300 cm and its height is 88 cm. How many litres of water can it hold?

  1. AOption (a)

    630

  2. BOption (b)

    582

  3. COption (c)

    645

  4. DOption (d)

    679

View answer & explanation

Correct answer

Answer: (a)A.

630

Explanation not yet available.

Question 283

RRB Section Controller 2026• Test

Find the median of all the odd numbers between 520 and 550.

  1. AOption (a)

    533

  2. BOption (b)

    537

  3. COption (c)

    531

  4. DOption (d)

    535

View answer & explanation

Correct answer

Answer: (a)A.

533

Explanation not yet available.

Question 284

RRB Section Controller 2026• Test

On a 2295 m long circular track, Siddharth finishes one round in 85 seconds and Yash finishes one round in 45 seconds. How many different meeting points are there on the track if they are running in the opposite directions?

  1. AOption (a)

    26

  2. BOption (b)

    36

  3. COption (c)

    20

  4. DOption (d)

    33

View answer & explanation

Correct answer

Answer: (a)A.

26

Explanation not yet available.

Question 285

RRB Section Controller 2026• Test

An arithmetic progression has 32 as its first term and 48 as its last term, with a total of 12 terms. What is the sum of these 12 terms?

  1. AOption (a)

    479

  2. BOption (b)

    480

  3. COption (c)

    482

  4. DOption (d)

    478

View answer & explanation

Correct answer

Answer: (a)A.

479

Explanation not yet available.

Question 286

RRB Section Controller 2026• Test

Read the passage and answer the questions.

In 2011, violent riots erupted across London and several English cities. Petrol bombs were hurled, properties vandalised, and shops looted. Despite extensive CCTV footage, most images were unclear, with rioters masking their faces. Gary Collins, an off-duty police officer, was watching the riots on television when he recognised several individuals. Interrupting his holiday, he spent six months meticulously examining CCTV footage and successfully identified 190 offenders—many solely by their eyes. His extraordinary contribution proved invaluable, especially since facial-recognition software identified only one person from 200,000 hours of film. Collins is a super-recogniser, a rare individual capable of recalling faces with exceptional precision. Coined in 2009, the term refers to the 1–2% of people who remember up to 95% of faces they encounter, in contrast to the average person’s 20%. Inspired by Collins’s achievement, London’s Metropolitan Police established the world’s first super-recogniser unit in 2015. This small team of six officers has since been responsible for nearly a quarter of all identifications in London, despite the presence of over 30,000 officers. Their success, amplified by Britain’s extensive CCTV network, has aided in convicting criminals ranging from petty thieves to murderers. Though rarely sole evidence, their findings often direct investigations, with many culprits pleading guilty upon recognition.

Which of the following is the most suitable title for the passage?

  1. AOption (a)

    Artificial Intelligence in Criminal Detection

  2. BOption (b)

    Convicting the Criminals: How to Recognise Faces

  3. COption (c)

    Faces Behind the Masks: The Rise of Super-Recognisers

  4. DOption (d)

    The Evolution of CCTV Technology

View answer & explanation

Correct answer

Answer: (a)A.

Artificial Intelligence in Criminal Detection

Explanation not yet available.

Question 287

RRB Section Controller 2026• Test

Read the passage and answer the questions.

In 2011, violent riots erupted across London and several English cities. Petrol bombs were hurled, properties vandalised, and shops looted. Despite extensive CCTV footage, most images were unclear, with rioters masking their faces. Gary Collins, an off-duty police officer, was watching the riots on television when he recognised several individuals. Interrupting his holiday, he spent six months meticulously examining CCTV footage and successfully identified 190 offenders—many solely by their eyes. His extraordinary contribution proved invaluable, especially since facial-recognition software identified only one person from 200,000 hours of film. Collins is a super-recogniser, a rare individual capable of recalling faces with exceptional precision. Coined in 2009, the term refers to the 1–2% of people who remember up to 95% of faces they encounter, in contrast to the average person’s 20%. Inspired by Collins’s achievement, London’s Metropolitan Police established the world’s first super-recogniser unit in 2015. This small team of six officers has since been responsible for nearly a quarter of all identifications in London, despite the presence of over 30,000 officers. Their success, amplified by Britain’s extensive CCTV network, has aided in convicting criminals ranging from petty thieves to murderers. Though rarely sole evidence, their findings often direct investigations, with many culprits pleading guilty upon recognition.

Identify the tone of the passage.

  1. AOption (a)

    Persuasive and critical

  2. BOption (b)

    Dramatic and emotional

  3. COption (c)

    Humorous and casual

  4. DOption (d)

    Factual and explanatory

View answer & explanation

Correct answer

Answer: (a)A.

Persuasive and critical

Explanation not yet available.

Question 288

RRB Section Controller 2026• Test

Read the passage and answer the questions.

In 2011, violent riots erupted across London and several English cities. Petrol bombs were hurled, properties vandalised, and shops looted. Despite extensive CCTV footage, most images were unclear, with rioters masking their faces. Gary Collins, an off-duty police officer, was watching the riots on television when he recognised several individuals. Interrupting his holiday, he spent six months meticulously examining CCTV footage and successfully identified 190 offenders—many solely by their eyes. His extraordinary contribution proved invaluable, especially since facial-recognition software identified only one person from 200,000 hours of film. Collins is a super-recogniser, a rare individual capable of recalling faces with exceptional precision. Coined in 2009, the term refers to the 1–2% of people who remember up to 95% of faces they encounter, in contrast to the average person’s 20%. Inspired by Collins’s achievement, London’s Metropolitan Police established the world’s first super-recogniser unit in 2015. This small team of six officers has since been responsible for nearly a quarter of all identifications in London, despite the presence of over 30,000 officers. Their success, amplified by Britain’s extensive CCTV network, has aided in convicting criminals ranging from petty thieves to murderers. Though rarely sole evidence, their findings often direct investigations, with many culprits pleading guilty upon recognition.

What percentage of people are estimated to be super-recognisers?

  1. AOption (a)

    15–18%

  2. BOption (b)

    1–2%

  3. COption (c)

    20–25%

  4. DOption (d)

    5–10%

View answer & explanation

Correct answer

Answer: (a)A.

15–18%

Explanation not yet available.

Question 289

RRB Section Controller 2026• Test

Read the passage and answer the questions.

In 2011, violent riots erupted across London and several English cities. Petrol bombs were hurled, properties vandalised, and shops looted. Despite extensive CCTV footage, most images were unclear, with rioters masking their faces. Gary Collins, an off-duty police officer, was watching the riots on television when he recognised several individuals. Interrupting his holiday, he spent six months meticulously examining CCTV footage and successfully identified 190 offenders—many solely by their eyes. His extraordinary contribution proved invaluable, especially since facial-recognition software identified only one person from 200,000 hours of film. Collins is a super-recogniser, a rare individual capable of recalling faces with exceptional precision. Coined in 2009, the term refers to the 1–2% of people who remember up to 95% of faces they encounter, in contrast to the average person’s 20%. Inspired by Collins’s achievement, London’s Metropolitan Police established the world’s first super-recogniser unit in 2015. This small team of six officers has since been responsible for nearly a quarter of all identifications in London, despite the presence of over 30,000 officers. Their success, amplified by Britain’s extensive CCTV network, has aided in convicting criminals ranging from petty thieves to murderers. Though rarely sole evidence, their findings often direct investigations, with many culprits pleading guilty upon recognition.

What does the passage imply about human versus machine recognition?

  1. AOption (a)

    Both perform equally well under pressure.

  2. BOption (b)

    Human memory is unreliable in criminal investigations.

  3. COption (c)

    Machines outperform humans in identifying subtle facial traits.

  4. DOption (d)

    Humans remain superior in complex facial identification tasks.

View answer & explanation

Correct answer

Answer: (a)A.

Both perform equally well under pressure.

Explanation not yet available.

Question 290

RRB Section Controller 2026• Test

Read the passage and answer the questions.

In 2011, violent riots erupted across London and several English cities. Petrol bombs were hurled, properties vandalised, and shops looted. Despite extensive CCTV footage, most images were unclear, with rioters masking their faces. Gary Collins, an off-duty police officer, was watching the riots on television when he recognised several individuals. Interrupting his holiday, he spent six months meticulously examining CCTV footage and successfully identified 190 offenders—many solely by their eyes. His extraordinary contribution proved invaluable, especially since facial-recognition software identified only one person from 200,000 hours of film. Collins is a super-recogniser, a rare individual capable of recalling faces with exceptional precision. Coined in 2009, the term refers to the 1–2% of people who remember up to 95% of faces they encounter, in contrast to the average person’s 20%. Inspired by Collins’s achievement, London’s Metropolitan Police established the world’s first super-recogniser unit in 2015. This small team of six officers has since been responsible for nearly a quarter of all identifications in London, despite the presence of over 30,000 officers. Their success, amplified by Britain’s extensive CCTV network, has aided in convicting criminals ranging from petty thieves to murderers. Though rarely sole evidence, their findings often direct investigations, with many culprits pleading guilty upon recognition.

The phrase “exceptional precision” most nearly means ___________________.

  1. AOption (a)

    unusual clarity

  2. BOption (b)

    average accuracy

  3. COption (c)

    frequent confusion

  4. DOption (d)

    minor detail

View answer & explanation

Correct answer

Answer: (a)A.

unusual clarity

Explanation not yet available.