Question
Xavier's colour printer takes 25 minute to print one large photograph. Xavier set the colour printer to print 10 such large photographs continuously. What is the latest time Xavier must start printing so that the photographs are printed by 1.25 p.m?
2 m

Click button first when a symbol is required. X

Xavier's colour printer takes 25 minute to print one large photograph. Xavier set the colour printer to print 10 such large photographs continuously. What is the latest time Xavier must start printing so that the photographs are printed by 1.25 p.m?