PSLE Students in a school are put into two groups for an excursion.
59 of the students are in Group A and the rest in Group B.
45 of the students in Group A are boys. In the school,
23 of the students are boys. What fraction of the students in Group B are boys?
Group A |
Group B |
Total |
5x1 |
4x1 |
9x1 |
|
|
3x3 |
5 u |
4 u |
9 u |
Boys |
Girls |
Boys |
Girls |
Boys |
Girls |
4 |
1 |
|
|
2x3 |
1x3 |
4 u |
1 u |
2 u |
2 u |
6 u |
3 u |
The total number of students is repeated.
Make the total number of students the same.
LCM of 9 and 3 is 9.
Number of boys in Group B
= 6 u - 4 u
= 2 u
Fraction of the students in Group B that are boys
=
24=
12Answer(s):
12