Student Questions

Showing: Class 9 (1283 questions)

• by GIANSH GUPTA KHUNDKER · Class 9

  Question: What happens chemically when quicklime (Calcium oxide, CaO) is added to water? A) It undergoes a decomposition reaction and absorbs heat. B) It undergoes a displacement reaction and releases heat. C) It undergoes a combination reaction and releases heat. D) It undergoes a double displacement reaction and absorbs heat.

  Science Other thumb_up 0 people 1 answers check_circle 100%
• by GIANSH GUPTA KHUNDKER · Class 9

  Question: One morning after sunrise, Rohan and Suresh were standing facing each other. Suresh's shadow fell exactly to the right of Rohan. Which direction was Rohan facing? A) NorthB) EastC) SouthD) West

  Reasoning Direction Sense Test thumb_up 0 people 0 answers check_circle 0%
• by GIANSH GUPTA KHUNDKER · Class 9

  Question: A man walks 5 km towards South, then turns left and walks 3 km, then turns left again and walks 5 km. Now, in which direction is he from his starting point? A) WestB) SouthC) NorthD) East

  Reasoning Direction Sense Test thumb_up 0 people 0 answers check_circle 0%
• by GIANSH GUPTA KHUNDKER · Class 9

  Question: What should come in place of the question mark (?) in the following series: 2, 6, 12, 20, 30, 42, ? A) 54B) 56C) 60D) 48

  Reasoning Series Completion thumb_up 0 people 0 answers check_circle 0%
• by GIANSH GUPTA KHUNDKER · Class 9

  Question: Find the missing number in the series: 4, 9, 19, 39, 79, ? A) 149B) 159C) 169D) 139

  Reasoning Series Completion thumb_up 0 people 0 answers check_circle 0%
• by GIANSH GUPTA KHUNDKER · Class 9

  Question: A is the father of B. C is the daughter of B. D is the brother of B. E is the son of A. What is the relationship between C and E? A) Father and DaughterB) Brother and SisterC) Uncle and NieceD) Grandfather and Granddaughter

  Reasoning Blood Relations thumb_up 0 people 0 answers check_circle 0%
• by GIANSH GUPTA KHUNDKER · Class 9

  Question: Pointing to a photograph of a boy, Riya said, "He is the son of the only daughter of my grandfather." How is the boy related to Riya A) CousinB) BrotherC) UncleD) Nephew

  Reasoning Blood Relations thumb_up 0 people 0 answers check_circle 0%
• by GIANSH GUPTA KHUNDKER · Class 9

  Question: If 'ROSE' is coded as '6821' and 'CHAIR' is coded as '73456', what is 'SEARCH' coded as? A) 214673B) 282673C) 216437D) 124637

  Reasoning Coding and Decoding thumb_up 0 people 0 answers check_circle 0%
• by GIANSH GUPTA KHUNDKER · Class 9

  If in a certain code, 'COLD' is written as 'DPME', how is 'FIRE' written in that code? A) EHQDB) GJSFC) GJSED) HJTF

  Reasoning Coding and Decoding thumb_up 0 people 0 answers check_circle 0%
• by GIANSH GUPTA KHUNDKER · Class 9

  If in a certain code language, CAT is written as XZG, how is DOG written in that same code? A) WLTB) WLOC) VLTD) TMZ

  Reasoning Coding and Decoding thumb_up 0 people 0 answers check_circle 0%
• by GIANSH GUPTA KHUNDKER · Class 9

  Find the odd one out from the given letter clusters: A) BEKB) CFLC) MPSD) GJP

  Reasoning Other thumb_up 0 people 0 answers check_circle 0%
• by GIANSH GUPTA KHUNDKER · Class 9

  Pointing to a picture, Amit said, "She is the only daughter of my father's only son." How is the girl related to Amit? A) NieceB) SisterC) DaughterD) Cousin

  Reasoning Blood Relations thumb_up 0 people 0 answers check_circle 0%
• by GIANSH GUPTA KHUNDKER · Class 9

  Find the next number in the sequence: 2, 6, 12, 20, 30, ? A) 36B) 42C) 48D) 52

  Reasoning Series Completion thumb_up 0 people 0 answers check_circle 0%
• by GIANSH GUPTA KHUNDKER · Class 9

  A developer modifies the leaderboard algorithm to strip whitespace using .strip() on input data. If a user registers with the password " securepass " (with spaces) but the code evaluates it as: What type of logical vulnerability or behavior occurs if the user later types "securepass" without any spaces at the login screen?A) The login fails because the stored token expects the original spaces.B) The login succeeds because both inputs resolve to the identical cleaned string before hashing.

  
  Cyber Python Programming thumb_up 0 people 0 answers check_circle 0%
• by GIANSH GUPTA KHUNDKER · Class 9

  Which of the following conditions, if added, would completely force Ananya to secure the absolute 1st Rank? A) Fatima is ranked 5th.B) Chetan is ranked 2nd.C) Divya is ranked higher than Fatima.D) Fatima is ranked higher than Bryan.

  Maths Probability thumb_up 0 people 1 answers check_circle 0%
• by GIANSH GUPTA KHUNDKER · Class 9

  Based on the script logic and raw data above, what will be the exact order of the final leaderboard? A) Priya, Simran, Amit, RahulB) Simran, Priya, Rahul, AmitC) Priya, Simran, Rahul, AmitD) Simran, Priya, Amit, Rahul

  Maths Other thumb_up 0 people 2 answers check_circle 0%
• by GIANSH GUPTA KHUNDKER · Class 9

  Scenario: To make it to the "Global Top 10" leaderboard, a student's score must be in the 95th percentile or higher. In a batch of 200 students, your code calculates a student's rank.Question: What is the lowest rank a student can achieve to still guarantee a spot on this elite leaderboard? A) 5th RankB) 10th RankC) 15th RankD) 20th Rank

  Maths Number Systems thumb_up 0 people 1 answers check_circle 100%
• by GIANSH GUPTA KHUNDKER · Class 9

  Scenario: On a live leaderboard, Sam is in 10th place with 120 points, and Rohan is in 11th place with 118 points. The final question is evaluated: Sam got it wrong (losing 3 points), and Rohan left it unattempted (losing 0 points).Question: What are their new positions relative to each other? A) Sam stays ahead of Rohan.B) Rohan overtakes Sam on the leaderboard.C) They tie at the exact same score.D) Both drop by 5 ranks.

  Maths Number Systems thumb_up 0 people 1 answers check_circle 100%
• by GIANSH GUPTA KHUNDKER · Class 9

  Scenario: In an Olympiad leaderboard of 6 ranks, A, B, C, D, E, and F occupy the positions.C is ranked immediately ahead of E.A is ranked higher than D but lower than F.B is at the bottom of the leaderboard (6th Rank).D is not in the top 3.Question: What is the exact rank of A? A) 2nd RankB) 3rd RankC) 4th RankD) 5th Rank

  Cyber Data Compression thumb_up 0 people 0 answers check_circle 0%
• by GIANSH GUPTA KHUNDKER · Class 9

  Password Hashing vs. Plaintext Why should you never store user passwords in a Python database using a simple variable assignment like stored_password = user_input? A) Variables in Python can only hold numbers.B) Storing passwords in plaintext exposes them to anyone who gains unauthorized access to the database or code.C) Python automatically deletes plaintext variables after 10 minutes.D) Plaintext strings make the Python script run too slowly.

  Cyber Python Programming thumb_up 0 people 0 answers check_circle 0%