PSLE Students in a school are put into two groups for an excursion.
18 of the students are in Group A and the rest in Group B.
23 of the students in Group A are boys. In the school,
56 of the students are boys. What fraction of the students in Group B are boys?
Group A |
Group B |
Total |
1x3 |
7x3 |
8x3 |
|
|
6x4 |
3 u |
21 u |
24 u |
Boys |
Girls |
Boys |
Girls |
Boys |
Girls |
2 |
1 |
|
|
5x4 |
1x4 |
2 u |
1 u |
18 u |
3 u |
20 u |
4 u |
The total number of students is repeated.
Make the total number of students the same.
LCM of 8 and 6 is 24.
Number of boys in Group B
= 20 u - 2 u
= 18 u
Fraction of the students in Group B that are boys
=
1821=
67Answer(s):
67