Question

a textbook of mathematics cost 2 rupees more than a textbook of literature.If 5 literature book cost 38 rupees more than 3 mathematics book,what is the cost of each literature book?

Answer 1

Let each literature text book cost be Rs. X
Then, cost of mathematics text book = Rs. (X + 2)
ATQ,
5X = 38 + 3(X + 2)
5X = 38 + 3X + 6
2X = 44
X = 22.
 
Therefore, cost of each literature text book = Rs. X = Rs. 22.
And that of masthematics = X + 2 = Rs. 24.

Answer 2

Let the cost price of textbook of literature be Rs L.

Then, cost price of textbook of mathematics will be Rs (L+2)

Cost of 3 mathematics book = 3L + 6

Cost of 5 literature book = 5L =  3L + 6 + 38 = 3L + 44

or, 2L = 44

or, L = 22. i.e. cost of 1 literature book is Rs 22 and cost of 1 mathematics book is Rs 24.