It is 66% 10 is [tex] \frac{2}{3} [/tex] of 15.So you divide 2 by 3=.66 then you convert that to a percent by moving the decimal twice to the right=66%
67% anytime you want to figure out a percent like this you take 10 divide it by 15 and multiply it by 100 answer is 67% its an approximation btw, actually 66.66666667%
