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IBC Quiz #217

14/08/2026

Hema G S

Hema G S

Class 7

Sri Vasavi Vidya samsthe sira

Anusha

Anusha

Class 7

Sri sharada English high school

Inaya Siddiqui

Inaya Siddiqui

Class 4

St.Thomas Convent Sr. Secondary School Begumganj

Rishi T

Rishi T

Class 7

Malgudi vidyanikethan

Athreya Navuda

Athreya Navuda

Class 7

Sri Sri Ravishankar vidya mandir bangalore east

Aishani Bhat

Aishani Bhat

Class 4

KSVK International School

Kishor.vp

Kishor.vp

Class 7

Rotary school Malavally

Sochisth sai A Reddy

Sochisth sai A Reddy

Class 7

Jnana Jyoti Public School

Adisha R Gowda

Adisha R Gowda

Class 7

Prudence International School , Tumkur

Devansh

Devansh

Class 7

Swargarani school

Note: Quiz prizes will be awarded to ten randomly selected students who submit correct answers before the deadline. Winners will be declared on the website and the weekly newsletter.

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Previous Week Quizzes

IBC Quiz #217

August 14, 2026

Question 1 :Upper Grade Question

An industrial manufacturing unit produces and packs machine components into boxes before dispatch. A vision-based counting system scans the packed boxes and checks whether they can be arranged into equal rows to verify the production count. However, if some boxes are left over during the arrangement, the system may record an incorrect production count. 

The system reports the following: 

  • When the boxes are arranged in 4 boxes per row, 2 boxes are left over. 

  • When the boxes are arranged in 5 boxes per row, 3 boxes are left over. 

  • When the boxes are arranged in 6 boxes per row, 4 boxes are left over. 

Let the total number of packed boxes be X. 

The production manager knows that the total number of boxes is greater than 100 but less than 150. 

After identifying X, the manager finds that another production section has 182 packed boxes. The boxes from both sections are combined and divided into two shipment groups. 

Each shipment group must be arranged into complete rows with no boxes left over when arranged in rows of 4, 5, or 6. To balance the workload between the two shipment groups, the number of boxes in the two groups should be as close to each other as possible. 

Question

Which of the following correctly gives the value of X and the number of boxes in Shipment Group 1 and Shipment Group 2? 

Quiz question
1)
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2)
Store
3)
Store
4)
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Final Answer:Option 4
Question 2 :Lower Grade Question

An industrial manufacturing unit produces and packs machine components into standardized boxes before they are moved to the assembly section. A production monitoring system counts the packed boxes and checks whether they can be arranged into complete rows for storage and handling. 

However, if some boxes are left over when the production team arranges them into rows, the inventory count may be recorded incorrectly. 

The production system reports the following: 

  • When the boxes are arranged in 4 boxes per row, 2 boxes are left over. 

  • When the boxes are arranged in 5 boxes per row, 3 boxes are left over. 

  • When the boxes are arranged in 6 boxes per row, 4 boxes are left over. 

Let the total number of packed boxes be X. 

The production supervisor knows that the total number of boxes is greater than 100 but less than 150. 

Question 

Which of the following represents the actual number of packed boxes X, and the least number of additional boxes that must be produced so that all the boxes can be arranged into complete rows with no boxes left over, whether arranged in rows of 4, 5, or 6? 

Quiz question
1)
Store
2)
Store
3)
Store
4)
Store
Final Answer:Option 4

IBC Quiz #216

August 07, 2026

Question 1 :Upper Grade Question

Scenario 

You are an AR Tracking Engineer developing a mobile application that displays a 3D navigation arrow on top of an AR marker. As users move their phones, the camera captures the marker from different angles and distances. If the marker fails the scanner's validation rules, the 3D arrow disappears or starts shaking, resulting in a poor user experience. 

During testing, four marker designs (A, B, C and D) are evaluated over three consecutive camera frames (F1, F2 and F3). Your task is to identify which marker can maintain stable AR tracking throughout the entire test. 

 

Scanner Validation Rules 

A marker is considered valid only if it satisfies all the following conditions in every frame: 

  1. Count only the visible cyan feature points (ignore the border corners). 

  1. All four outer corners of the marker must remain visible. 

  1. At least 12 cyan feature points must be visible. 

  1. The marker should include at least 5 feature points on each half to ensure both sides provide enough detectable information. 

  1. The 180° rotated pattern must appear different from the original, and the marker must remain flat (not folded or bent). 

Question 

After analysing the three captured frames (F1, F2 and F3) for each marker, which marker will keep the AR arrow stable throughout the entire moving-camera test?

Quiz question
1)
Store
2)
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3)
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4)
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Final Answer:Option 3
Question 2 :Lower Grade Question

Scenario 

You are an AR Game Tester testing a new Augmented Reality Treasure Hunt application. When a player points the camera at an AR marker, a 3D treasure chest appears and remains locked in place. However, if the marker fails the scanner's tracking rules, the treasure chest will shake, drift or disappear. 

To ensure smooth gameplay, the AR scanner checks each marker while the camera moves through different viewing angles. Four marker designs (A, B, C and D) are tested across three camera views (F1, F2 and F3). 

Your task is to identify the marker that can successfully pass every scanner check and keep the treasure chest locked in place. 

AR Scanner Rules 

A marker is considered valid only if it satisfies all the following conditions in every camera view: 

  1. Complete Marker Visible 

    • All four outer corners of the marker must remain visible. 

  1. Minimum Feature Points 

    • Count only the cyan feature points. 

    • At least 8 visible feature points must be detected in every view. 

  1. Fair Feature Distribution 

    • The marker must have at least 3 cyan feature points on the left side and 3 on the right side. 

  1. Correct Orientation and Flat Surface 

    • The marker should look different when rotated by 180°. 

    • The paper must remain flat (not folded, bent or curled). 

Each marker is tested in three different camera positions: 

  • F1 – Front View (0°): Camera is directly above the marker. 

  • F2 – Angled View (30–40°): Camera is tilted to one side. 

  • F3 – Partial View (25°): A small object partially covers the marker. 

Every camera view must satisfy all four scanner rules. 

Question 

After carefully observing the three camera views for Markers A, B, C, and D, which marker will keep the AR treasure chest locked in place throughout the entire test? 

Quiz question
1)
Store
2)
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3)
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4)
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Final Answer:Option 2
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