Verified Answer :

Well if the t-shirts are the same amount of money per shirt, then you simply work it out like this.
EXAMPLE
1 t-shirt = $10
So if you need to buy 10 you just multiply 10 by 10.
10x10= $
100
Also if you need to find the difference between buying 6 or 10 you subtract the two numbers which would be 4 then divide 100 by 4.

Answer:

Hence, the cost of 10 t-shirts is more than the 6 t-shirts by four times the cost of one t-shirt.

Step-by-step explanation:

We are given the following information in the question:

In order to answer this question, we have to make the following assumptions.

Let the cost of one t-shirt be x.

Then,

Cost of 10 t-shirts =

\(\text{Cost on one t-shirt}\times 10 = 10x\)

Cost of 6 t-shirts =

\(\text{Cost on one t-shirt}\times 6 = 6x\)

Difference between cost =

Cost of 10 t-shirts - Cost of 6 t-shirts = \(10x - 6x = 4x\)

Hence, the cost of 10 t-shirts is more than the 6 t-shirts by four times the cost of one t-shirt.