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primary 6 | Maths | Fractions
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primary 6 chevron_right Maths chevron_right Fractions chevron_right Singapore

Please help. Thanks

Date Posted: 4 years ago
Views: 597
snell
Snell
4 years ago
cost
total: 5504
s: (5504-128)/2 = 2688
t: 2668+128 = 2816


nos
s: 3u
t: 2u


unit cost
s: 2688/3u = 896/u
t: 2816/2u = 1408/u


1408/u = 896/u + 16
512/u = 16
1u = 32


(a)
$2688


(b)
96 s


.
.
.

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AC Lim
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