Question

if cost of a pen is half of the book and both cost rupees 15 the cost of pen is​

Answer 1

let the cost of pen be = x

and the cost of book be = 2x

2x +x =15

x = 15 -2

13 = X==

Answer 2

Answer:

pen cost is 5

Step-by-step explanation:

because =

both book and pen cost is 15

so,pen's cost is half of book.

so ,we can divide the 15

= 15/3

= 5

so we get both the cost

pen = 5

book = 10