Question

the cost of a notebook is rs 5 more than that of a pen the cost of 4 pens and 5 notebooks is rs 85 find the cist of one pen and one notebook​

Answer 1

Answer:

Let the cost of the pen=x

Then the cost of the notebook will be x+5

Acc. to the question-  4x + 5(x+5)=85

                             = 4x + 5x + 25=85

                             = 9x = 85-25

                            = 9x =  60

                            = x = 60/9

                                 =6.66666667

           

            So cost of one pen is Rs.6.66666667 and 1 note. is x + 5=Rs.(6.66666667+5)= Rs. 11.6666667

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Answer 2

Answer:

Rs. 6.66 & 11.66

Step-by-step explanation:

Let them cost of a pen = x

Therefore cost of a pen = x+5

According to the question,

4x +5 (x+5)= 85

4x + 5x + 25 = 85

9x = 85-25

9x = 60

x= 60÷9

x= 20/3 or 6.66

Cost of a pen and a notebook are Rs. 6.66 and Rs. 11.66