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The following table shows the marks distribution among the students in a class.

Marks No. of Students
Less than 10 2
Less than 20 5
Less than 30 6
Less than 40 8
Less than 50 10

How many students scored less than 20 marks?

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SSC CGL 2023 Tier-I Official Paper (Held On: 24 Jul 2023 Shift 2)
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  1. 5
  2. 7
  3. 2
  4. 6

Answer (Detailed Solution Below)

Option 1 : 5
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Detailed Solution

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Concept used

Cumulative frequency: the total of frequencies, that are distributed over different class intervals

Calculation

The students who scored less than 20 marks are 5.

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Last updated on Jun 2, 2025

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