Posted by **sylvie** on Friday, February 12, 2010 at 4:22pm.

The number of boys in a certain class exceed the number of girls by 7. If the number of boys is 5/4 of the number of girls, how many boys are there in the class?

The choices of answers are:

a) 21

b) 28

c) 35

d) 42

e) 63

I figured out that the answer is 35, but I did it by subtracting each of the possible answers by 7 and then multiplying that answer by 5/4.

This is what I did to get my final answer using 35: 35 - 7 = 28; 5/4 X 28/1 = 140/4 which equals 35.

Now, I know there must be a simplier way to get that answer.

Can you show me step by step? Thanks.

## Answer this Question

## Related Questions

- math - There are 12 girls in one of the fifth grade classes. The number of girls...
- math - There are 27 students in Mrs. Reeds class. The number of boys and number...
- math - there were 490 altogether in 2 groups. group A consited of only boys and ...
- math - There are 24 students in Mr.Hills class. The number of boys and number of...
- Math - There are 12 girls and 9 boys in Mrs. Johnson's classroom. She said that ...
- Math - There are 12 girls and 9 boys in Mrs. Johnson's classroom. She said that...
- Math - If the ratio of girls to boys on the swim team is 2:3, which of these ...
- Math - Students surveyed boys and girls separately to determine which sport was ...
- algebra - the number of boys is ten less than double the number of girls, if the...
- MATHS - Class A and Class B have the same number of pupils. The ratio of the ...