解:

今日通过人民币汇率查询:

1 几内亚法郎 = 0.0008 人民币

3000人民币

=3000÷0.0008=3000x1/0.0008

=3000x(1x10000/0.0008x10000)

=3000x10000/8

=3000x1250

=3750000(几内亚法郎)