In a class of 40,the ratio of boys to girls is 3: 5.how many are girls how many are boys? ​

15

Step-by-step explanation:

40 = 3x + 5x

40 = 8x

5 = x

3x = boys = 15

Therefore, there are 15 boys in the class

15 boys, 25 girls

Step-by-step explanation:

1. Add the ratios

3 + 5 = 8

2. Divide the total number by the total ratio

40 ÷ 8 = 5

3. Multiply the answer in step 2 by the ratios

5 × 3 = 15

5 × 5 = 25

Therefore, there are 15 boys and 25 girls in the class.

15 boys

Step-by-step explanation:

3:5 where 3 is for boys and 5 is for girls

3+5= 8

40 divided by 8 = 5

5*3=15 boys

checking:

5*3= 15

5*5=25

15+25= 40(true)

Step-by-step explanation:

3+5=8

40÷8=5

5 is 1 part of 40

5×3=15

5×5=25

Checking

15 + 25 = 40

15÷5=3

25÷5=5

3:5

There are 15 boys and 25 girls in the class.