The cost of a book and a notebook is 36. If the cost of the book is five times the cost of the notebook, find the cost of the book.
Answers
Given: Total cost of book and notebook is Rs. 36
Cost of book is 5 times the cost of notebook.
To find: Cost of book.
Step-by-step explanation:
Let the cost of notebook be Rs.x
Then, cost of book = Rs.5x
According to question,
cost of book + cost of notebook = Rs. 36
x + 5x = 36
6x = 36
x = 6
∴ Cost of notebook = Rs.6
Cost of book = Rs.5x = Rs.(5×6) = Rs.30
Answer: Cost of book = Rs. 30
Given :-
The cost of a book and a notebook is 36.
The cost of the book is five times the cost of the notebook.
To find :-
The cost of the book.
Solution :-
Let the cost of a note book be Rs. X
The cost of a book = 5 times the cost of the note book = Rs. 5X
The cost of the book and the note book
= X+5X
= Rs. 6X
According to the given problem
The cost of the book and the note book = Rs. 36
=> 6X = 36
=> X = 36/6
=> X = 6
Therefore, X = Rs. 6
The cost of a note book = Rs. 6
The cost of a book = 5(6) = Rs. 30
Answer :-
The cost of the book = Rs. 30