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Question
In the class intervals 10 – 20, 20 – 30, etc., respectively, 20 lies in the class ______.
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Solution
In the class intervals 10 – 20, 20 – 30, etc., respectively, 20 lies in the class 20 – 30.
Explanation:
Numbers that lie in 10 – 20 are 10, 11, ......, 19
And numbers that lie in 20 – 30 are 20, 21, ......, 29
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