Practicing Success

Target Exam

CUET

Subject

General Test

Chapter

Quantitative Reasoning

Topic

Data Interpretation & Stats

Question:

Study the given graph and answer one questions that follows.

Degree wise distribution of no. of students working in Class (A, B, C, D and E)

Total no. of students = 3000

If 20% of students of class E are transferred to class A, then difference between no. of students in class A and 136% of the students in class D is?

Options:

44

34

54

64

Correct Answer:

44

Explanation:

Total no. of students = 3000

⇒ E = 93° = \(\frac{93°}{360}\) × 3000

⇒ 20% of E = \(\frac{93°}{360}\) × 3000 × \(\frac{1}{5}\) = 155

⇒ A = 64.2° = \(\frac{64.2°}{360}\) × 3000 = 535

⇒ Total student in class A = 535 + 155 = 690

⇒ D = 57° = \(\frac{57°}{360}\) × 3000

⇒ 136% of D = \(\frac{57°}{360}\) × 3000 × \(\frac{34}{25}\) = 646

⇒ Therefore,

Difference b/w students in class A (with 20% of E) and students in class D = 690 - 646 = 44