How much money did the pensioner have before being robbed?
A thief stole 6/11 of a pensioner’s money and spent 6/11 of the money stolen. The thief was then caught, and the remaining money was returned to the pensioner.
The remaining money was £425 less than the amount the pensioner had after being robbed. How many pounds did the pensioner have before the theft?
This problem is adapted from the World Mathematics Championships
Age 14 to 16