Question

If seven books and five pens cost ₹410 whereas five books and seven pens cost ₹334 then the cost of three books and four books and four pens would be

Answer 1

Step-by-step explanation:

1) Take Books = X and Pens = Y

2)Then form the equations accordingly

3)The two Equations would be

i. 7x + 5y = 410

ii. 5x + 7y = 334

4) Use any method to solve the pair of equations

5) By solving the value of x = 50 and y = 12

Now your answer

the cost of three books and four books and four pens would be = 398

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