There are 600 people in a concert audience. 3 /10 are male and 5 /6are older than 10 years of age. How many people in the audience are female?

If 3/10 are male then 7/10 are female, for both those add to 10/10 or 1.

To find out how many people in the audience are female, we need to subtract the number of males from the total number of people.

First, let's find the number of males in the audience. We know that 3/10 (or 3 out of 10) are male. To find the number of males, we divide the total number of people (600) by the denominator (10) and then multiply that result by the numerator (3):

Number of males = (Total number of people / Denominator) * Numerator
= (600 / 10) * 3
= 60 * 3
= 180

So, there are 180 males in the audience.

Now, let's find the number of females by subtracting the number of males from the total number of people:

Number of females = Total number of people - Number of males
= 600 - 180
= 420

Therefore, there are 420 females in the concert audience.