Question

12 Statistics books and 8 Mathematics books cost 204/- and 9 statistics
books and 6 Mathematics books cost 153/-. Find the cost of each type
of book.​

Answer 1

Answer:

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Answer 2

Answer:

statistics book cost - 7/-

mathematics book cost - 15/-

Step-by-step explanation:

let us take cost of 1 statistics book is x

and 1 mathematics book is y

1. 12x + 8y = 204
2. 9x + 6y = 153

let us take common values in both equations

1. 4(3x + 2y) = 204
2. 3(3x + 2y) = 153

now,

we got same reminder in both equations

that is, (3x+2y) = 51

substitute values of x and y so that you get 51

therefore ,x = 7

y = 12

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