PSLE Students in a school are put into two groups for an excursion.
311 of the students are in Group A and the rest in Group B.
13 of the students in Group A are boys. In the school,
311 of the students are boys. What fraction of the students in Group B are girls?
Group A |
Group B |
Total |
3x1 |
8x1 |
11x1 |
|
|
11x1 |
3 u |
8 u |
11 u |
Boys |
Girls |
Boys |
Girls |
Boys |
Girls |
1 |
2 |
|
|
3x1 |
8x1 |
1 u |
2 u |
2 u |
6 u |
3 u |
8 u |
The total number of students is repeated.
Make the total number of students the same.
LCM of 11 and 11 is 11.
Number of boys in Group B
= 3 u - 1 u
= 2 u
Number of girls in Group B
= 8 u - 2 u
= 6 u
Fraction of the students in Group B that are girls
=
68=
34Answer(s):
34