Question

Meena and Teena went to book shop and bought some exercise notebooks. They had Rs
100 each. Meena could buy 7 large and 4 small notebooks. Teena could buy 5 large and 6 small
notebooks and had Rs 5 left. What is the cost of large notebook?
hi jadhav intro please​

Answer 1

Answer:

10

Explanation:

large notebook = x

small notebook = y

= 7x + 4y = 100

5x + 6y = 95

taking lcm of y

21x + 12y = 300

10x + 12y = 190

subtracting--

21x - 10x + 12y - 12y = 300-190

11x = 110

x = 10

large notebook = 10 rs