project can be completed in 5 days more by A alone than by B alone. If two people work together to complete it in 6 days, how many days will it take B to complete it alone?
一项工程，甲单独做比乙单独做多用5天完成，若两人合做6天可以完成，那么乙独做需几天完成？
<result>10</result>