Answer:
If the ratio is 7:5 and there are 42 girls, then you are multiplying by 6. 5 x 6 = 30. 30 boys participated.
Step-by-step explanation:
There are 30 boys in the competition.
Step-by-step explanation:
Given : The ratio of girls to boys who participated in the quiz bowl was 7:5. There were 42 girls in the competition.
To find : How many boys participated?
Solution : Let x be the number of boys in the competition.
There are 42 girls in the competition.
The ratio form by girls to boys is 42 : x
The ratio of girls to boys who participated in the quiz bowl was 7 : 5.
Solving the two ratios,
Therefore, There are 30 boys in the competition.
