Question

20. If. b: (a-b)::d:(c-d) thena/a-b
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Answer 1

Answer:

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Answer 2

Answer:

a/(a-b) =ad/b(c-d)

Step-by-step explanation:

b:(a-b)::d:(c-d)

∴ b/(a-b) = d/(c-d)

=>1/(a-b) = d/b(c-d)  [dividing both sides by b]

=>a/(a-b) =ad/b(c-d)