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Question

If 8a+2b8a2b=71, then find b : a.

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Solution

8a+2b8a2b=71

8a+2b+8a2b8a+2b8a+2b=7+171 [Applying componendo and dividendo]

16a4b=86

4ab=43

ab=13

ba=31 (Applying invertendo)


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