Question

Vikash bought 6 notebooks and 5 pen for 100rs , Vikash has given a clue that both the cost are positive integer and divisible by 5 such that the cost of notebook is greater than the pen.
find the cost of notebook and pen ​

Answer 1

Answer:

Notebook = 10 per notebook

pen = 8 per pen

Answer 2

Given: Vikash bought 6 notebooks and 5 pens for 100rs, Vikash has given a clue that both the cost are positive integer and divisible by 5 such that the cost of the notebook is greater than the pen.

To find: We have to find the cost of a notebook and pen.

Solution:

Let the cost of one notebook be x rupees and one pen is y rupees.

Vikash has given a clue that both the cost are positive integer and divisible by 5.

So, x and y are a multiple of 5.

Vikash brought 6 notebooks and 5 pens for 100rs.

So, we can write-

$5 \times 6x + 5 \times 5y = 100 \\ 6x + 5y = 20$

So, the possible values of x and y can be 2.5 and 1.

The value of x and y is-

$5 \times 2.5 = 12.5$

$1 \times 5 = 5$

The cost of the notebook and pen is 12.5 and 5.