MATH SOLVE

3 months ago

Q:
# The ratio of boys to girls in a class is 5:7. There are 36 students in the class. How many students are boys?

Accepted Solution

A:

Boys : Girls : Total

5 : 7 : 5 + 7

5 . ; 7 . : 12

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Find 1 part :

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12 parts = 36

1 part = 36 ÷ 12

1 part = 3

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Find number of boys (5 parts)

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1 part = 3

5 parts = 3 x 5

5 parts = 15

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Answer: There are 15 boys.

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5 : 7 : 5 + 7

5 . ; 7 . : 12

-------------------------------------

Find 1 part :

-------------------------------------

12 parts = 36

1 part = 36 ÷ 12

1 part = 3

-------------------------------------

Find number of boys (5 parts)

-------------------------------------

1 part = 3

5 parts = 3 x 5

5 parts = 15

-------------------------------------

Answer: There are 15 boys.

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