解:6000÷ 【75÷ (75-60 )】等于( 1200 ) ∵已知需求出6000÷ 【75÷ (75-60 )】等于多少 ∴6000 ÷ 【75 ÷ (75 - 60 )】 = 6000 ÷ (75 ÷ 15) = 6000 ÷ (75×1/15) = 6000 ÷ 5 = 6000 × 1/5 = 6000/5 = 1200 答:6000÷ 【75÷ (75-60 )】等于1200