In the class 0 – 10,10 – 20,20 – 30,30 – 40 …………lower limit of 10 – 20 is A) 10 B) 20 C) 30 D) 15
In the class 0 – 10,10 – 20,20 – 30,30 – 40 …………lower limit of 10 – 20 is
A) 10
B) 20
C) 30
D) 15
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