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.
56 of the students in Group A are boys. In the school,
12 of the students are boys. What fraction of the students in Group B are boys?
Group A |
Group B |
Total |
3x2 |
8x2 |
11x2 |
|
|
2x11 |
6 u |
16 u |
22 u |
Boys |
Girls |
Boys |
Girls |
Boys |
Girls |
5 |
1 |
|
|
1x11 |
1x11 |
5 u |
1 u |
6 u |
10 u |
11 u |
11 u |
The total number of students is repeated.
Make the total number of students the same.
LCM of 11 and 2 is 22.
Number of boys in Group B
= 11 u - 5 u
= 6 u
Fraction of the students in Group B that are boys
=
616=
38Answer(s):
38