Answer:
39
Explanation:
multiply the 5 by 13 and get 65 and multiply thr 3 by 13 its 39
39 is the correct answer
if the ratio is 3:5 then ?:65
3/5 = ? /65
divide 13 from 65 to get 5.
So, multiply 13 and 3 to get 39.
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