Question 1148685
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Given a:b = 3:2, let a=3x and b=2x.<br>
That is one standard way of starting working on a problem where a ratio is given like that.<br>
Then<br>
{{{(2a+3b)/(2a+5b) = (2(3x)+3(2x))/(2(3x)+5(2x)) = (12x)/(16x) = 12/16 = 3/4}}}<br>