18. The average of 4,9,18,21,30,16,30,16 is ……….a)17 b)18 c)20 d)24
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Answer:
add them and divide it with the no. of term i.e 8 so 144/8=18
Answered by
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Answer:
4+9+18+21+30+16+30+16=144÷8
=18
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