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Read the data answer the given questions
How many students have scored marks 20 and more but less than 40?
Number of students who scored :
40 and above = 18
30 and above = 41 - 18 = 23
20 and above = 69 - 41 = 28
10 and above = 88 - 69 = 19
0 and above = 100 - 88 = 12
=> Students who have scored marks 20 or more but less than 40 = 28 + 23 = 51
=> Ans - (C)
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