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Question
primary 6 | Maths
| Percentage
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Pls help
Date Posted: 1 year ago
Views: 454
(a)
(4-3) ÷ 4 ×100% = 25% (Ans)
(b)
at first
S:P:T = 3:1:4 = 30u : 10u : 40u
in the end
S:P:T = 5u : 3u : 8u
sold
S:P = 25u : 63
7u = 63 → u = 9
40u = 360 (Ans)
(4-3) ÷ 4 ×100% = 25% (Ans)
(b)
at first
S:P:T = 3:1:4 = 30u : 10u : 40u
in the end
S:P:T = 5u : 3u : 8u
sold
S:P = 25u : 63
7u = 63 → u = 9
40u = 360 (Ans)
Hi thanks for helping! Can i ask how come need to x10 to expand the ratio for at first?
in order to work w the whole number
Thank you
See 1 Answer
done
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1 year ago
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