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If a:b=3:4, b:c=7:9, c:d=5:7, d:e=12:5, Then a:e=

A1:2

B2:1

C2:3

D1:1

Answer:

D. 1:1

Read Explanation:

(a/b)*(b/c)*(c/d)*(d/e)=a/e (3/4)*(7/9)*(5/7)*(12/5)=a/e 1=a/e ie a:e=1:1


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