I am unable to understand this question.
Ques. A garrison of 3300 men had provision for 32 days, when given at the rate of 850 gm per head. At the end of 7 days, a reinforcement arrived and it was found that the provision would last 17 days more, when given at the rate of 825gm per head. What was the strength of the reinforcement?ย I don't know from where to start the question and how to solve it