There were an equal number of girls in Class 6U and Class 6V.
45 of the pupils in Class 6U are girls and
19 of the pupils in Class 6V are boys. Given that there are a total of 12 boys in the two classes, how many pupils are there in Class 6V?
| Class 6U |
Class 6V |
| Girls |
Boys |
Girls |
Boys |
| 4x2 |
1x2 |
8 |
1 |
| 8 u |
2 u |
8 u |
1 u |
Fraction of girls in Class 6V
= 1 -
19=
89The number of girls in Class 6U and Class 6V is the same. Make the numerators the same.
4x25x2 of pupils in Class 6U =
89 of pupils in Class 6V
810 of pupils in Class 6U =
89 of pupils in Class 6V
Total number of boys
= 2 u + 1 u
= 3 u
3 u = 12
1 u = 12 ÷ 3 = 4
Number of pupils in Class 6V
= 9 u
= 9 x 4
= 36
Answer(s): 36
