Question

X:Y=4:5 then (4x+5y) : (5x+2y)?

Answer 1

Since, x:y = 4:5

Therefore,

$\frac{(4x + 5y)}{(5x + 2y)} \\ = \frac{(4(4) + 5(5))}{(5(4) + 2(5))} \\ = \frac{(16 + 25)}{(20 + 10)} \\ = \frac{41}{30}$
(4x + 5y) : (5x + 2y) = 41:30

Hope you understood.
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