Question

Gaji rata2 pegawai suatu perusahaan Rp250.000. Gaji rata2 pegawai prianya Rp260.000. Sedangkan gaji rata2 pegawai wanitanya Rp210.000. Berapakah perbandingan jumlah pegawai pria dan wanita ?
*Tolong Disertai CARA*

Answer 1

250.000 = ((P x 260.000) + (W x 210.000)) : (P+W)
250.000 x (P+W) = 260.000P + 210.000W
250.000P + 250.000W = 260.000P + 210.000 W
250.000W - 210.000W = 260.000P - 250.000P
40.000W = 10.000P
P/W = 10.000/40.000
P/W = 1/4
atau
P : W = 1 : 4