Question

A stack of one hundred fifty cards is placed next to a ruler, and the height of the stack is measured to be

3/4 inches.

How thick is one card?

Answer 1

.005 inches is the answer. you just divide 3/4 inches by 150

Answer 2

Answer: One card is 0.005 inches thick.

Explanation:

Since we have given that

Number of cards in a stack = 150

Thickness of the stack =
`(3)/(4)\ inches`

So, Thickness of each card is calculated by "Unitary method":

Thickness of 150 cards =
`(3)/(4)\ inches`

Thickness of 1 card is given by

`(3)/(4* 150)\\\\=(1)/(4* 50)\\\\=(1)/(200)\\\\=0.005\ inches`

Hence, One card is 0.005 inches thick.