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primary 6 | Maths
| Fractions
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Date Posted: 2 years ago
Views: 486
LCM (3,4) → 12
At first
C:S = 12u+256 : 12u
left
C → 1 - ¼ = ¾
S → 1 - ⅔ = ⅓
C:S : C-S = 9u+192 : 4u : 5u+192
C-S = 5u+192 = 377
u = (377-192)÷5 = 37
(a)
12u+256 = 12×37+256 = 700 (Ans)
(b)
⅔ × 12u × $1.30
= 8×37 × $1.30
= $384.80 (Ans)
At first
C:S = 12u+256 : 12u
left
C → 1 - ¼ = ¾
S → 1 - ⅔ = ⅓
C:S : C-S = 9u+192 : 4u : 5u+192
C-S = 5u+192 = 377
u = (377-192)÷5 = 37
(a)
12u+256 = 12×37+256 = 700 (Ans)
(b)
⅔ × 12u × $1.30
= 8×37 × $1.30
= $384.80 (Ans)
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