Question

A doctor has 53 ccs of a 40% solution of a pain killer. How much sterilized water should be added to get a 27% solution?

Answer 1

35.775

Explanation:

So, 53 is the amount of ccs that makes a 40% solution.

How can we find the ccs of 27% solution?

Well, we should first find teh amount of ccs per 1%.

To do this, divide 53 by 40:

53/40

=

1.325

Now multiply this by 27 to get the amount of ccs for 27%:

27*1.325

=

35.775

Hope this helps! :)