甲说:“我提前了6分钟,乙是正点到的.”
乙说:“我提前了4分钟,丙比我晚到2分钟.”
丙说:“我提前了3分钟,丁提前了2分钟.”
丁说:“我还以为我迟到了1分钟呢,其实我到后1分钟才听到收音机报北京时间10时整.”
请根据以上谈话分析,这4个人中,谁的表最快,快多少分钟?
同类型试题
y = sin x, x∈R, y∈[–1,1],周期为2π,函数图像以 x = (π/2) + kπ 为对称轴
y = arcsin x, x∈[–1,1], y∈[–π/2,π/2]
sin x = 0 ←→ arcsin x = 0
sin x = 1/2 ←→ arcsin x = π/6
sin x = √2/2 ←→ arcsin x = π/4
sin x = 1 ←→ arcsin x = π/2
y = sin x, x∈R, y∈[–1,1],周期为2π,函数图像以 x = (π/2) + kπ 为对称轴
y = arcsin x, x∈[–1,1], y∈[–π/2,π/2]
sin x = 0 ←→ arcsin x = 0
sin x = 1/2 ←→ arcsin x = π/6
sin x = √2/2 ←→ arcsin x = π/4
sin x = 1 ←→ arcsin x = π/2