PSLE Ahmad kept pencils in boxes Y and Z. Box Y contained four times as many pencils as box Z. In box Y,
15 of the pencils were yellow pencils. In box Z,
12 of the pencils were yellow pencils. What fraction of Ahmad's pencils were yellow pencils?
Box Y |
Box Z |
Total |
4x2x5 |
1x2x5 |
5x2x5 |
Y |
Not yellow |
Y |
Not yellow |
|
1x8 |
4x8 |
1x1x5 |
1x1x5 |
|
8 u |
32 u |
5 u |
5 u |
50 u |
LCM of 5 and 8 is 40.
Number of yellow pencils
= 8 u + 5 u
= 13 u
Total number of pencils = 50 u
Fraction of Ahmad's pencils that were yellow =
1350 Answer(s):
1350