英语翻译

问题描述:

英语翻译
The tribe has grown a wonderful harvest of crops.The chief is very smart and has alloca ted all the crops three families with different size.To each family,he give 10 tons more than half of what remains after he has given to the previous family.How many tons of crops did the chief start with?

有个部落的庄稼得了大丰收.首领很聪明,把丰收的粮食平均分配给三个大家族.在第一个家庭分配完后,他会将剩下粮食的一半再加上10吨分配给下一个家族.问一开始的粮食是多少吨?