Question

Deepak bought 3 notebooks and 2 pens for Rs. 80. His friend Ram said that price of each notebook could be Rs. 25. Then three notebooks would cost Rs.75, the two pens would cost Rs.5 and each pen could be for Rs. 2.50. Another friend Ajay felt that Rs.2.50 for one pen was too little. It should be at least Rs. 16. Then the price of each notebook would also be Rs.16.Lohith also bought the same types of notebooks and pens as Aditya. He paid 110 for 4 notebooks and 3 pens. Later, Deepak guess the cost of one pen is Rs. 10 and Lohith guess the cost of one notebook is Rs. 30. (i) Form a pair of linear equations in two variables from these situations by taking cost of a note book as 'x' and cost of a pen as 'y' *



3x + 2y = 80 and 4x + 3y = 110

2x + 3y = 80 and 3x + 4y = 110

x + y = 80 and x + y = 110

3x + 2y = 110 and 4x + 3y = 80​

Answer 1

Answer:

According to the statement, we have

3x+2y=80and4x+3y=110

Thus (b) is correct option.

Answer 2

Answer:

According to the statement, we have

3x+2y=80and4x+3y=110

Thus (b) is correct option.

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