self Maths Puzzle

if
2345 =62
6571 =73
then
8355 =?

Read Solution (Total 5)

self Other Question

A man in a train travelling at 30km/hr notices that a train going in the opposite direction passes him in 9 sec.If the length of this train is 200m find its speed . Aman can row 1km upstream in 20 min and back to his starting point in 12 min.How long would he take to row 1km in still water?.