Thursday

April 24, 2014

April 24, 2014

Posted by **Ajay** on Tuesday, June 8, 2010 at 2:18am.

- math -
**MattsRiceBowl**, Tuesday, June 8, 2010 at 2:39amWe would have to know how many boys and girls there were.

- math -
**AJ**, Tuesday, June 8, 2010 at 3:39amWell if 1/5th of the girls and 1/8th of the boys when we put this as a whole fraction, we get 13/40th of the grade went to the camp. We do this by making both fractions have a common demoninator (bottom) then simply adding them to find fraction of boys and girls(all of the grade)

- math -
**MattsRiceBowl**, Tuesday, June 8, 2010 at 10:49amThat won"t work. Just test it with 2 very different amounts.

Let's assume there are 1000000 boys and 5 girls. 1/8 of 1000000 is 125,000. 1/5 of 5 is 1. So 125,001 out of 1,000,005 people went. That is (a little more than) 12.5%. Your fraction of 13/40 is 32.5% and I am not quite sure of the reasons why you picked that method.

Using different numbers, assume there are 8 boys and 5 girls. That's 2 people out of 13. That's 15.38%. That's quite different from our other number.

The ONLY way to do this is to assume (quite poorly) that the number of boys and girls are even. OR to find out how many of each there are. At least that's all I can think of unless I am having a stupid moment, which I am known for. :-)

**Related Questions**

MATHS - Two different schools (A and B) have the same number of pupils. The ...

English - 1. My sister and I took part in school marathon yesterday. 2. My ...

math - 3/4 of the students in a school were girls and the rest were boys. 2/3 of...

Math - For every girl taking classes at the martial arts school, there are 3 ...

statistics - Please analyze the following data using the T-test for Unpaired ...

Maths Percentage - 2/5 of the children in an art club were girls. 1/4 of the ...

English - 1. I'm in the third year of middle school. 2. I'm in the third year in...

Math - 55% of the studnts in a school are girls.find the total no. of studnt in ...

probability - A survey of 850 students conducted in two schools showed the ...

Math - 8 Children divided 32 apples. Kitty took 1 apple, Mary took 2, Sherrie ...