Question

If x :y = 3 : 5, find the ratio 3x + 4y : 8x + 5y​

Answer 1

Let x=3a and y=5a

Since given 3x+4y:8x+5y

3*3a+4*5a:8*3a+5*5a

=9a+20a:24a+25a

=29a:49a

=29:49[a/a=1]

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Answer 2

Answer:

29:49

Step-by-step explanation:

3×3+4×5:8×3+5×5

=9+20:24+25

=29:49