求问一道GRE数学题
WorkersatcompaniesXandYarepaidthesamebasehourlyrate.WorkersatcompanyXarepaid1.5timesthebasehourlyrateforeachhourworkedperweekinexcessofthefirst37,whileworkersatcompanyYarepaid1.5timesthebasehourlyrateforeachhourworkedperweekinexcessofthefirst40.Inagivenweek,howmanyhoursmustacompanyXworkerworkinordertoreceivethesamepayasacompanyYworkerwhoworks46hours?
X和Y的员工工作的baserate不是一样的吗?咋不能直接直接46-40+37?
麻烦回答详细点,文科生,真的不知道怎么理解.谢谢啦