Question

If x : y = 3 : 4, find (3x + 4y) : (5x + 6y).

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Answer 1

Answer:

we have, X/y=3/4------(1) .°. (3x+4y):(5x+6y) =3x+4y/5x+6y On dividing numeranumerator and denominator by y 3(x/y)+4 / 5 (x/y)+6 Using eq (1) 3×3/4+4 /5×3/4+6 9/4+6 /15/4+6 9+16/15+24 25/39 25:39