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a:b=2:5, b:c= 4:3 ആയാൽ a:b:c എത്ര

A7:9:7

B8:20:15

C10:8:15

D7:10:9

Answer:

B. 8:20:15

Read Explanation:

a:b:c = 2×4 : 5×4 : 5×3 = 8 : 20 : 15


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