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  1. If A : B = 3 : 4 , B : C = 8 : 10 and C : D = 15 : 17, th e n fin d A : B : C : D .
    1. 9 :12 :15 : 17
    2. 9 :15 :12 : 17
    3. 9 :17 :12 : 15
    4. 9 :15 :17 : 12
Correct Option: A

A : B = 3 : 4 B : C = 8 : 1 0
C : D = 15 : 17
∴  A : B : C : D = 3 × 8 × 15 : 4 × 8 × 15 : 4 × 10 × 15 : 4 × 10 × 17
= 9 : 12 :15 : 17


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