Question

The price of a book is 5 less than 3 times of the price of a pen. The price of a book is 40. What is the proce of a pen? what is the answer

Answer 1

Answer:

let the price of pen be x...

given.. price of book =40..so, we make linear equation... as,

3x-5=40

3x=45

x=15

#price of pen = 15

Answer 2

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Given :

Let Price of pen be ' p '

Then, Price of Book will be = 5 - ( 3p )

According to the question :

☞ 5 - ( 3p ) = Price of book

☞ 5 - ( 3p ) = 40

☞ 3p = 40 + 5

☞ 3p = 45

☞ p = 45 / 3

☞ p = 15.

Verification :

Book = 5 - ( 3 × p )

☞ 5 - ( 3 × 15 )

☞ 5 - ( 45 )

☞ 40.

Therefore, Pen = Rs. 15

and

Book = Rs. 40.

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