A garrison of 450 men had provision for 42 days, when given at the rate of 550 gms per head. At the end of 10 days a reinforcement arrives and it was found that the provisions will last 15 days more, when given at the rate of 825 gms per head.What is the strength of the reinforcement?
1). 70
2). 190
3). 230
4). 640
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