Question

The cost of two books and three pens is Php705. If the book costs Php40 more than the pen, find the cost of the book and the pen.

Answer 1

Answer:

             2B + 3P = 705

and         B  P+40

now put d value f B in d eqtn

           2B + 3P = 705

           2(P+40) + 3P = 705

           2P+80+3P = 705

           5P+80=705

            5P = 705-80 = 625

              P = 625/5 = 125 = Pen

and         Book =  Pen +40

                         =125+40 = 165

   

Step-by-step explanation: