If a : b = 3 : 4 and b: C = 5:9, then a : b:cis
(1) 15 : 20 : 36 (2) 20 : 36 : 15
(3) 3 : 20 : 9
(4) None f these
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Answer:
15:20:36
Step-by-step explanation:
3:4×5:5=5:9×4:4
15:20=20:36
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