PSLE Bryan kept pencils in boxes X and Y. Box X contained four times as many pencils as box Y. In box X,
15 of the pencils were yellow pencils. In box Y,
14 of the pencils were yellow pencils. What fraction of Bryan's pencils were yellow pencils?
Box X |
Box Y |
Total |
4x4x5 |
1x4x5 |
5x4x5 |
Y |
Not yellow |
Y |
Not yellow |
|
1x16 |
4x16 |
1x1x5 |
3x1x5 |
|
16 u |
64 u |
5 u |
15 u |
100 u |
LCM of 5 and 16 is 80.
Number of yellow pencils
= 16 u + 5 u
= 21 u
Total number of pencils = 100 u
Fraction of Bryan's pencils that were yellow =
21100 Answer(s):
21100