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Question
primary 6 | Maths
| Ratio
One Answer Below
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Need help. Many thanks.
Date Posted: 1 year ago
Views: 159
Make blue pen to same, 6u
Many thanks. How about part b
(a)
R:B:P =15:6:10
(b)
T=R+B+P
at first
T : B+P = 31u : 16u
in the end
T : B+P =7 : 4 =28u : 16u
change
31u-28u = 3u = 6
u = 2
$ total for the remaining pens
0.45×28u = $25.20 (Ans)
Concept
Items (B+P) unchanged
R:B:P =15:6:10
(b)
T=R+B+P
at first
T : B+P = 31u : 16u
in the end
T : B+P =7 : 4 =28u : 16u
change
31u-28u = 3u = 6
u = 2
$ total for the remaining pens
0.45×28u = $25.20 (Ans)
Concept
Items (B+P) unchanged
3u = 6
See 1 Answer
done
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Hope this helps
Date Posted:
1 year ago
Many thanks
Many thanks
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