Question

A pen costs Rs.11 and a notebook costs Rs.13. Find the number of ways in which a person can spend exactly Rs. 1000 to buy pens and notebooks.

Answer 1

X be no of pens and y be no of notebooks
So
11x+13y=1000
Now find different values of x and y

Answer 2

Answer:

A person can spend in 7 ways with an amount of Rs. 1000 to buy pens and notebooks.

Step-by-step explanation:

Given:  

Pen costs = Rs.11.

Notebook costs Rs.13.

Step 1:

Let P be the number of pen.

Let Q be the number of notebook.

Step 2:

As per given data,

A pen costs Rs.11 and a notebook costs Rs.13.

i.e. Total cost  

Step 3:

Amount spend= Rs.1000.

Now, For different value y there is different value of x.

y    5     16    27     38    49   60    71

x   85   72     59    46   33    20     7

Step 4:

Hence we can conclude, a person can spend in 7 ways with an amount of Rs. 1000 to buy pens and notebooks.