Question

the cost of a notebook is rupee X and the cost of a book is rupee 90 if the total cost of 4 notebook and 4 book is rupee 500 find a cost of the notebook​

Answer 1

Answer:

if we multiply 90x4 we will get 360 then we will get 140 then we will devide it by 4 we will get 35 so cost of 1 notebook is 35

Step-by-step explanation:

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Answer 2

Answer:

35

Step-by-step explanation:

Book-90rs

4 books +4 notebook -500

90×4 -360

500-360-140

140/4 -35