Question

The total cost of 6 books and 7 pens is 79 rupees and the total cost of 7 books and 5 pens

is 77 rupeess. Find the cost of 1 book and 2 pens.​

Answer 1

Step-by-step explanation:

let the number of books Be X

let the number of pens be y

according to question

6 X + 7 y is equals to 79 rupees------1

7 x + 5 y is equal to 77 rupees-------2

multiply equation 1 by 5

30 X + 35 y is equals to 395 rupees----3

multiplying equation 2 by 7

49 X + 35 y is equal to 539----4

substrating 1 from 2

19x=144

x=7.58 rs

I feel that the question is wrong because x is not coming in whole no..