Question

2. The price of a pen is 7 rupees and the price of a notebook is
12 rupees.
i. What is the total price of 5 pens and 6 notebooks?
ii. What about 12 pens and 7 notebooks?
iii. What is the relation between the number of pens, the
number of books and the total price?​

Answer 1

cost of a pen = 7

cost of a notebook = 12

I) 5 pens and 6 notebook.

5×7+6×12= 107/-

II) 12 pens 7 notebook

12×7+7×12 = 168/-

Iii) let pens= X notebook = y

1) 5x+6y=107 ---(1)

2) 12x+7y=168 ---(2)

Hope it helps

it's correct

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