Marks number of students 1 - 20 10 20 - 40 40 40 - 60 15 60 - 80 12 80 - 100 30 What is the ratio of the number of student between 20-40 and 80-100 marks?

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Marks	number of students
1 - 20	10
20 - 40	40
40 - 60	15
60 - 80	12
80 - 100	30

What is the ratio of the number of student between 20-40 and 80-100 marks?

A4 ∶ 3

B5 ∶ 3

C3 ∶ 5

D3 ∶ 4

Answer:

A. 4 ∶ 3

Read Explanation:

Number of students getting marks between 20-40 marks = 40 Number of students getting marks between 80-100 marks = 30 Required ratio = 40 ∶ 30 = 4 ∶ 3

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