Crack the Interview: Easy InSemi Round 1 Quiz Quiz

This quiz focuses on essential concepts and fundamental problem-solving skills commonly assessed in easy-level InSemi Round 1 interviews. Strengthen your core understanding with targeted questions covering logical reasoning, basic programming, numerical aptitude, and pattern recognition.

1. Logical Sequence Challenge

   If the pattern in the sequence 2, 6, 12, 20, 30 continues, what will be the next number?

   1. 42
   2. 48
   3. 38
   4. 36

   Explanation: The pattern follows adding consecutive even numbers: 2 (+4) 6 (+6) 12 (+8) 20 (+10) 30. The next addition would be +12, so 30 + 12 equals 42. Option 36 is an incorrect addition and breaks the pattern. Option 38 and 48 do not follow the established even-number increment. Therefore, 42 is the only number that maintains the sequence.

2. Basic Programming Output

   What will be the output of the following pseudo code?nnSet a = 5; b = 2; c = a / b; print(c)

   1. 5
   2. 2.5
   3. 2
   4. 3

   Explanation: Dividing 5 by 2 yields 2.5 in most programming languages that handle floating-point division by default. Option 2 would be correct if integer division was enforced, but the code doesn't specify that. Options 3 and 5 are unrelated to simple division in this context. Thus, 2.5 is the correct and expected output.

3. Numerical Aptitude Assessment

   A train travels 120 kilometers in 3 hours. What is the average speed of the train in kilometers per hour?

   1. 40
   2. 45
   3. 60
   4. 36

   Explanation: Average speed is found by dividing total distance by total time, so 120 kilometers divided by 3 hours gives 40 kilometers per hour. Options 45, 36, and 60 do not match this calculation. These distractors might result from confusion with alternative formulas or incorrect arithmetic. Only 40 kilometers per hour reflects the correct answer for this scenario.

4. Data Structure Knowledge

   Which data structure operates on a First In First Out (FIFO) basis, such as managing a queue of people?

   1. Stack
   2. Array
   3. Tree
   4. Queue

   Explanation: A queue follows the First In First Out principle, meaning the first element added is the first to be removed, similar to people waiting in line. A stack operates using Last In First Out (LIFO), which is the opposite. Arrays do not inherently define element removal order, and trees organize data hierarchically. Thus, queue is the suitable answer here.

5. Pattern Recognition

   Which word does not belong with the others: apple, banana, carrot, grape?

   1. apple
   2. carrot
   3. grape
   4. banana

   Explanation: Carrot is a vegetable, while apple, banana, and grape are fruits. The other options—banana, apple, and grape—are all fruits, making carrot the item that does not fit the pattern. The distractors might seem similar because all are edible, but only carrot is not a fruit.