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The histogram shows the marks scored by 40 students in test with maximum 30 marks. What is the ratio of the number of students who scored marks in the class intervals 10 - 15 and 15 - 20 taken together to that of the students in the class intervals 5 - 10 and 25 - 30 taken together?

The histogram shows the marks scored by 40 students in test with maximum 30 marks. What is the ratio of the number of students who scored marks in the class intervals 10 - 15 and 15 - 20 taken together to that of the students in the class intervals 5 - 10 and 25 - 30 taken together? Correct Answer <p>15 ∶ 13</p>

Calculation:

Total number of students who scored marks in the class intervals 10 - 15 and 15 - 20 taken together = 7 + 8 = 15

Total number of students who scored marks in the class intervals 5 - 10 and 25 - 30 taken together = 8 + 5 = 13

∴ Required ratio = 15 : 13

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