Urgent ~ math problem ~

5 people: 89*5=445 points

Xiaohong and Xiaoming: 9 1.5*2= 183.

Kobanawa Xiaojun: 84*2= 168.

Xiaohong and Xiaojun: 86*2= 172.

Only Xiaojun 89 and Xiaohua 79 can satisfy their sum 168, Xiaohong: 172- Xiaojun 89= Xiaohong 83. Xiao Ming: 183- Xiaohong 83= 100. Xiao Qiang: 445-89-79-83- 100=98 points.

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