a+b/a-b = 2 , b+c/b-c = 3 , c+d/c-d = 5 , a+d/a-d =???????

1.	a+b/a-b = 2 , b+c/b-c = 3 , c+d/c-d = 5 , a+d/a-d =???????
Answer» a+b/a-b=2 a=3bSimilarly b=2c. 2c=3da+d/a-d=3b+d/3b-d=9d+d/9d-d=10d/8d=5/4 ans

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