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Question
primary 5 | Maths
| Rate & Ratio
One Answer Below
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Date Posted: 5 years ago
Views: 564
before spending,
S: u
K: 3u
before spending,
S: u-3.20
K: 3u-3.20
5 x (u-3.20) = 3u-3.20
u = 6.40
in the end, K has 3x6.40-3.20 = $16
S: u
K: 3u
before spending,
S: u-3.20
K: 3u-3.20
5 x (u-3.20) = 3u-3.20
u = 6.40
in the end, K has 3x6.40-3.20 = $16
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