MathematicsIn the class intervals 10-20 and 20-30, 20 is not included in which interval?

In the class intervals 10-20 and 20-30, 20 is not included in which interval?

A
10-20
B
20-30
C
Both the intervals
D
None of the intervals

Solution:

Whenever there is a continuous classes intervals higher limit of class will not be counted. So 20 will not be counted in first class interval. It will be counted in 20-30 not in 10-20 class. So the correct answer is 1.

Solution:

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