Question

Robbie wants to buy some new comic books for a reasonable price. ComicWorld is selling his favorites for 4 for $6. At Kapow Comics he can get 7 for $8.75. Where can he get the best deal per comic book and how do you know?

Answer 1

Kapow Comics is the best deal per comic book.

Explanation:

Given:

At Comic world 4 books =$6

At Kapow Comics 7 books = $8.75

We need to find the best deal per comic book.

Solution:

First we will find the rate of 1 comic book at Comic World.

Now we know that;

4 books = $6

1 book = Cost of 1 comic book.

By using Unitary method we get;

Cost of 1 comic book =
`(6)/(4)=\$1.5`

Hence Cost of 1 comic at Comic World is $1.5.

First we will find the rate of 1 comic book at Kapow Comics.

Now we know that;

7 books = $8.75

1 book = Cost of 1 comic book.

By using Unitary method we get;

Cost of 1 comic book =
`(8.75)/(7)=\$1.25`

Hence Cost of 1 comic at Kapow Comics is $1.25.

Now comparing both side we can say that;

Cost of 1 book is Less at Kapow comics than at Comic World.

Hence Kapow Comics is the best deal per comic book.