Answer:
B. 169
Step-by-step explanation:
[tex]\rm3:13 = 39:N[/tex]
Multiply extreme by extreme, mean by mean.
[tex]\implies\rm 3(N) = 13(39)[/tex]
[tex]\implies \rm 3N = 507[/tex]
[tex]\implies \rm N = \frac{507}{3}[/tex]
[tex]\implies \boxed{\rm N = 169}[/tex]
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