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Question

If A:B=5:9,B:C=2:7,C:D=14:2 then A:D=


  1. 5:2

  2. 9:10

  3. 10:9

  4. None of the above


Solution

The correct option is C

10:9


we have A/B=5/9 ,B/C=2/7,C/D=14/2

So on multiplying all the ratio,we get 

ABBCCD =5927142

i.e. AD109 =10:9

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