Hi,please help to explain this question. Thanks

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primary 5 Maths Whole Numbers Singapore

Hi,please help to explain this question.
Thanks

Date Posted: 3 years ago

Eric Nicholas K

3 years ago

Fastest 72 slowest 92

Average
= (72 + 92) divided by 2
= 82 sec

Khushal

3 years ago

Thanks

72s
90s
92s
80s

Fastest: 72s
Slowest: 92s

(92 + 72)/2 to find average.

done {{ upvoteCount }} Upvotes

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Date Posted: 3 years ago

Khushal

3 years ago

Thanks

Khushal

3 years ago

Thank you somuch