Question

The cost of 1 pen is rs 16 and the cost of 1 pencil is rs 5 .What is the total cost of x pens and y pencils?with explanation ​

Answer 1

Step-by-step explanation:

Cost of one pen =Rs.15

Cost of x pens =15×x=Rs.15x

Cost of 1 pencil =Rs.3

Cost of y pencils =3×y=3y

Therefore,

Total cost of x pens and y pencils =15x+3y=3(5x+y)

Hope this will help you

Answer 2

Topic

Linear Equations

Given

The cost of 1 pen is Rs. 16 and the cost of 1 pencil is Rs. 5.

To Find

The total cost of x pens and y pencils.

Solution

Total number of pens is x.

Cost of one pen is Rs. 16.

Total Cost = Total Units × Price of each unit

So,

Total cost of x pens will be = 16x

Similarly,

Total number of pencils is y.

Cost of one pencil is Rs. 5.

So,

Total cost of pencils = 5y

Now,

Total cost of pencils and pens = Total Cost of pens + Total Cost of pencils

Total Cost of pens and pencils = 16x + 5y

Answer

So, total cost of pens and pencils is 16x + 5y.