Mohon dijawab skrang!!No 15

Uang Reni : Nova = 8 : 5
Selisih uang = Rp. 45.000

Banyak Uang Nova
= 5 / (8 - 5) x 45.000
= 5/3 x 45.000
= 5 x 15.000
= Rp. 75.000

R=8/5N
|R-N| = 45000
|(8/5N)-N| = 45000
3/5N = 45000
N = 75000