Which of the following numbers are in proportion?
(a) 1:2:3:4 (b) 4:6:5:7 (c) 8:6:12:9 (d) none
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Answer:
No 6 8:6:12:9 it is in a correct proportion..
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Answer:
8:6:12:9 are in proportion.
Step-by-step explanation:
the formula =product of mean=product of extreme
12 ×6=9×8
72=72
so it is proportion
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