Computational Thinking (CT) week 2 important questions

Week 2 of Computational Thinking: Iteration, selection, pseudocode, max/min. Extra important questions based on the recent, changing patterns of the exams, from basic to advanced. Practise them in learning mode: each question has a worked solution.

Question 1

Numerical answer

Table 1 holds the "Scores" dataset.

Name	City	Maths	Physics
Bhavin	Delhi	66	34
Chitra	Delhi	75	38
Gita	Pune	71	75
Meena	Kochi	51	91
Kavya	Pune	57	56
Farid	Delhi	70	31

The following pseudocode is executed.

1max = 0
2while (Table 1 has more rows) {
3    Read the first row X in Table 1
4    if (X.Maths > max) {
5        max = X.Maths
6    }
7    Move X to Table 2
8}
9Print max

What is printed?

Question 2

One correct option

Table 1 holds the "Scores" dataset.

Name	City	Maths	Physics
Gita	Kochi	40	34
Omkar	Pune	85	36
Priya	Pune	41	95
Asha	Jaipur	65	68
Meena	Delhi	76	35
Lakshman	Chennai	75	78
Esha	Chennai	58	89

The following pseudocode is executed.

1min = 100
2while (Table 1 has more rows) {
3    Read the first row X in Table 1
4    if (X.Physics < min) {
5        min = X.Physics
6    }
7    Move X to Table 2
8}
9Print min

What is printed?

A
$33$
B
$35$
C
$68$
D
$34$

Question 3

One correct option

Table 1 holds the "Scores" dataset.

Name	City	Maths	Physics
Chitra	Chennai	36	34
Esha	Kochi	68	49
Asha	Delhi	38	65
Lakshman	Chennai	64	82
Gita	Kochi	33	56
Dev	Kochi	34	86
Priya	Pune	72	92
Isha	Delhi	37	62

The following pseudocode is executed.

1max = 0
2who = ""
3while (Table 1 has more rows) {
4    Read the first row X in Table 1
5    if (X.Maths >= max) {
6        max = X.Maths
7        who = X.Name
8    }
9    Move X to Table 2
10}
11Print who

What is printed?

A
Esha
B
Priya
C
Chitra
D
Asha

Computational Thinking (CT) week 2 important questions

Question 1

Question 2

Question 3

More questions in this week