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Question
primary 6 | Maths
| Ratio
One Answer Below
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Help pls (there’s percentage too)
Date Posted: 3 years ago
Views: 225
Ans:
(a) 1760
(b) 488
R : B : T1 = 5 : 4 : 9 = 15 : 12 : 27
G : B : T2 = 7 : 3 : 10 = 28 : 12 : 40
for T2 (B+G) 【25% decrease】
40 → 30
In the end
15+30 = 45
1440÷45 = 32
(a)
R+B+G = 15+12+28 = 55
55×32 = 1760 (Ans)
(b)
1760-1440+168 = 488 (Ans)
(a) 1760
(b) 488
R : B : T1 = 5 : 4 : 9 = 15 : 12 : 27
G : B : T2 = 7 : 3 : 10 = 28 : 12 : 40
for T2 (B+G) 【25% decrease】
40 → 30
In the end
15+30 = 45
1440÷45 = 32
(a)
R+B+G = 15+12+28 = 55
55×32 = 1760 (Ans)
(b)
1760-1440+168 = 488 (Ans)
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