Where save the bookmarks? Please help

Hai Subhankar, You can find your saved bookmarks Cat users: https://cracku.in/cat/progress Banking users: https://cracku.in/banking/progress SSC users: https://cracku.in/ssc/progress RRB users: https://cracku.in/railways/progress

X can finish 25% of a work in a day. Y can do 12.5% of the same work in a day. In how many days, will both of them finish the work together?