On the same 1:50 000 map extract of Grid Area West, a footbridge is located within grid square with south-west corner 25 eastings and 13 northings. The bridge lies 450 metres east and 200 metres north of the south-west corner of that square. Give the SIX-FIGURE grid reference for the footbridge, using metres within the square.
(Total for Question 2 is 2 marks)