http://www.sundayobserver.lk/sites/default/files/styles/large/public/news/2017/05/31/z_jun-p10-My-favourite.jpg?itok=mzVYT_sp

Problem No. 3

If a car covers (15x^2+7x+24) kilometers in (3x+2) hours, what is the average speed in km/hr?


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