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primary 6 | Maths
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Date Posted: 5 years ago
Views: 278
153-135 = 18
18 was under counted.
129 - 124.5 = 4.5
The average decreased by 4.5. this means that if we divided the amount undercounted equally among the numbers, each number was under counted by 4.5.
Divide total undercounted by the average
18 ÷ 4.5 = 4
There are 4 numbers
18 was under counted.
129 - 124.5 = 4.5
The average decreased by 4.5. this means that if we divided the amount undercounted equally among the numbers, each number was under counted by 4.5.
Divide total undercounted by the average
18 ÷ 4.5 = 4
There are 4 numbers
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Date Posted:
5 years ago
done
{{ upvoteCount }} Upvotes
clear
{{ downvoteCount * -1 }} Downvotes
Hope this help
Date Posted:
5 years ago
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