Question

Four milliliters of ink A is added to 10 milliliters of ink B, forming a mixture of inks. Ink A contains 10% blue pigment. Ink B contains an unknown percentage of blue pigment. The mixture of the two inks contains 35% blue pigment.

What percentage of blue pigment is in ink B?

Answer 1

45%

Explanation:

edge.

Answer 2

(4*0.1+10x)/14=0.35

0.4+10x=4.9

10x=4.5

x=0.45

The B ink is 45% blue.