按如下退票规定:
开车前15天(不含)以上退票的,不收取退票费;
开车前48小时以上至15天以内退票的,按票价的5%收取退票费;
开车前24小时以上、不足48小时退票的,按票价的10%收取退票费;
开车前24小时以内退票的,按票价的20%收取退票费;
(1)张叔购买的火车票原价是多少元?
(2)张叔退票后可以拿回多少钱?
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