Question

There are 250 people in a museum

2/5 of the 250 people are girls

3/10 of the people are boys

The rest of the people are adults

"work out the of adults in the museum"

I really dont understand this question can you please help​

Answer 1

75 adults

Explanation:

first, we work out how many boys and girls there are:

2/5 x 250 = 100

so, 100 people are girls

3/10 x 250 = 75

so, 75 people are boys

100 girls + 75 boys = 175 boys and girls

since the rest are adults, we subtract 175 from the total:

250 - 175 = 75

75 people are adults.

Answer 2

Answer: There are 75 adults.

Explanation:

2/5 = 4/10

4/10 + 3/10 = 7/10

1 - 7/10 = 3/10

3/10 of 250 = 75