Question

A text book of mathematics costs 2 rupees more than a text book of literature .If 5 litrature books cost 38 rupees more than 3 mathematics books, what is the cost of each literature book?


ans:-

Answer 1

Hey, here is your answer...


Let the cost of 1 mathematics book be ₹x and 1 literature book be ₹y. x=y+2
So, according to your question,
38+3x=5y
38+3(y+2)=5y
38+3y+6=5y
44=2y
y=₹22
So, x=₹24.


Hope it helps you...

Plzzz mark as brainliest...

Answer 2

Solution :


Let the literature book = x

Maths book = y

Cost of textbook of maths is 2 rupees more than that of a literature book, y = x + 2 ......(1)

Cost of 5 literature books = 5x

38 rupees more than 3 books,

5x = 3y + 38 ......(2)

Equating (1) and (2) we get :

x + 2 = y × 3

5x - 38 = 3y

3x + 6 = 3y ......(3)

Equating (1) and (3) we get :

3x + 6 = 3y

5x - 36 = 3y

- + -
___________

-2x = -4

___________

x = $\frac{ - 44}{ - 2}$


x = 22



Therefore, cost of each literature book is 22 rupees.