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 cost for Rs.2.50. Another friend Ajay felt that Rs2.50 for pen was too little. It

should be at least Rs. 16. Then the price of each notebook would also be Rs. 16. Lohit also

bought the same type of notebook and pen as Aditya. He paid 110 for 4 Notebooks and 3 pens.

Later, Deepak guess the cost of one pen is Rs.10 and Lohit guess the cost of one notebook

Rs.30 .

i) From the pairs of linear equation in two variable form the situation by taking cost of one

notebook be x and cost of one pen be y.

a) 3x+2y=80 and 4x+3y=110 b) 2x+3y=80 and 3x+4y=110

c) x + y=80 and x + y=110 d) 3x+2y=110 and 4x+3y=80

ii) Which one is the solution that satisfy the equation formed in part (i).

a) x=10, y=20 b) x=20, y=10 c) x=15, y=15 d) none of these

iii) Find the total cost if they will purchase the same type of 15 notebooks and 12 pens.

a) 400/- b) 450/- c) 420/- d) 350/-

iv) Find the cost of one pen.

a) 20/- b) 10/- c) 5/- d) 15/​

Answer 1

Answer:

bro bohot bara questions he

Answer 2

Answer:

Hi mate

Step-by-step explanation:

I am also solving this question, 1. option a ,3x+2y =80 & 4x+ 3y=110.

2,3,4 I don't know sorry, 5. option c, Ram.

hope this helps you.