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Question
primary 6 | Maths
| Data Analysis
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This question confuses me very much. I would be very thankful if you could lend me a hand.
Date Posted: 5 years ago
Views: 359
at first
no. of bags: u
avg : 146
total nails: 146u
after adding 1 bag
no. of bags: u+1
avg : 143
total nails: 143 . (u+1)
total nails: 146u+128
143 . (u+1) = 146u + 128
u = 5
after adding 1 bag, total of 6 bags
no. of bags: u
avg : 146
total nails: 146u
after adding 1 bag
no. of bags: u+1
avg : 143
total nails: 143 . (u+1)
total nails: 146u+128
143 . (u+1) = 146u + 128
u = 5
after adding 1 bag, total of 6 bags
See 1 Answer
done
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clear
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I used algebra. Hope this helps
Date Posted:
5 years ago
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