Drakula
Answered

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Which pair of ratios is proportional
A. 4/9 and 16/45
B.5/12 and 25/144
C. 12/18 and 18/27
D. 15/20 and 7/10

Sagot :

iloveonedirection
A. 4/9 and 16/45
16 / 4 = 4
45 / 9 = 5
Disproportional 

B.5/12 and 25/144
25 / 5 = 5
144 / 12 = 12
Disproportional

C. 12/18 and 18/27
18 / 12 = 3/2
27 / 18 = 3/2
Proportional

D. 15/20 and 7/10
7 / 15 = 7/15
10 / 20 = 1/2
Disproportional 

Answer: (c)
tadvisohil886
Let us check each of these.

A) 4/9 and 16/45
or, 1.44 and 1.355
1.44 ≠ 1.355    ( Wrong)


B) 5/12 and 25/144
or, 1.416 and1.17
1.416 ≠ 1.17    (wrong)


C) 12/18 and 18/27

or, 1.66 and 1.66
1.66 = 1.66    (Correct)


D) 15/20 and 7/10
=0.75 and 0.70
0.75 ≠ 0.70

Thus, the answer is (C)
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