Question

A 45 gm tube of 1% clotrimazole cream is combined with 15gm of base. What is the new % strength ?

Answer 1

0.75% is the answer the our question

Answer 2

Answer:

0.75 %

Step-by-step explanation:

Given,

A 45 gm tube of 1% clotrimazole cream is combined with 15gm of base.

Since, the percentage of clotrimazole cream in base = 0 %,

Let x be the percentage of clotrimazole cream in the resultant solution,

So, we can write,

1 % of 45 gm + 0 % of 15 gm = x % of (45 + 15) gm

$\implies \frac{1\times 45}{100}+\frac{0\times 15}{100}=\frac{x\times 60}{100}$

$\implies \frac{45}{100}+0=\frac{60x}{100}$

$\implies \frac{45}{100}=\frac{60x}{100}$

$\implies 45 = 60x$

$\implies x = \frac{45}{60}=0.75\%$