Question

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Answer 1

Answer:

the answer is

iii) 5:15::4:12

iv) 1:4::3:12

Step-by-step explanation:

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Answer 2

Answer:

2:3::4:x

2x X = 3x4

X = 12/ 2 = 6

3:6::x:8

3x8 = 6x X

X = 24/6 = 4

5:x::4:12

Xx4 = 5x12

X = 60/4 = 25

x : 4::3:12

12x X = 4x3

X = 12/ 12 = 1