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20+b 5a+4b TN ek i, तो —— %A AW कीजि

Answer»

2a+b=3(a+4b)2a+b=3a+12b2a-3a=12b-b

- a = 11b => a = - 11b.

(a + b)/(a + 2b) = (- 11b + b)/(- 11b + 2b).

= - 10b/- 9b = 10/9.

(a + b)/(a + 2b) = 10/9.

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