To convert drams to grams, multiply the number of drams by which number?

"Dram" is a unit of volume, whereas "gram" is a unit of mass.

They can't be directly converted. If they both refer to a sample

of some substance, then the conversion depends on the density

of the substance. All we can say for sure by way of an answer is:

To change 'drams' to 'grams', replace the 'd' with 'g'.