PSLE Students in a school are put into two groups for an excursion.
16 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,
45 of the students are boys. What fraction of the students in Group B are boys?
Group A |
Group B |
Total |
1x5 |
5x5 |
6x5 |
|
|
5x6 |
5 u |
25 u |
30 u |
Boys |
Girls |
Boys |
Girls |
Boys |
Girls |
4 |
1 |
|
|
4x6 |
1x6 |
4 u |
1 u |
20 u |
5 u |
24 u |
6 u |
The total number of students is repeated.
Make the total number of students the same.
LCM of 6 and 5 is 30.
Number of boys in Group B
= 24 u - 4 u
= 20 u
Fraction of the students in Group B that are boys
=
2025=
45Answer(s):
45