Jawabanmu

2014-06-13T13:34:05+07:00
Kelipatan 4 = 
 \frac{n(A)}{n(S)}  \frac{10}{40} =  \frac{1}{4}

Kelipatan 3 =
 \frac{n(A)}{n(S)}  \frac{13}{40}