There were an equal number of girls in Class 4S and Class 4T.
35 of the students in Class 4S are girls and
17 of the students in Class 4T are boys. Given that there are a total of 20 boys in the two classes, how many students are there in Class 4T?
Class 4S |
Class 4T |
Girls |
Boys |
Girls |
Boys |
3x2 |
2x2 |
6 |
1 |
6 u |
4 u |
6 u |
1 u |
Fraction of girls in Class 4T
= 1 -
17=
67The number of girls in Class 4S and Class 4T is the same. Make the numerators the same.
3x25x2 of students in Class 4S =
67 of students in Class 4T
610 of students in Class 4S =
67 of students in Class 4T
Total number of boys
= 4 u + 1 u
= 5 u
5 u = 20
1 u = 20 ÷ 5 = 4
Number of students in Class 4T
= 7 u
= 7 x 4
= 28
Answer(s): 28