Pharmacy Question gratefulness for adjectives the helper?

A pre-filled syringe contains 50mg of lidocaine per 5ml. Express the percentage strength of the lidocaine.

please help solve the problem
Answers:
__50 mg__ = ___x____
****5 ml*********100 ml***

50 x 100 divided by 5 = 1000 mg = 1 gm

1% = 1 gm per 100 ml
it is 10%. 50mg/5ml= x/100ml=1000mg/100ml= 10%

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