PSLE Eva has a number of pencils in three colours: yellow, green and brown.
37 of the pencils are yellow. The number of yellow pencils is four times the number of green pencils. What fraction of the pencils is brown?
Yellow |
Green |
Brown |
Total |
3x4 |
4x4 |
7x4 |
4x3 |
1x3 |
|
|
12 u |
3 u |
13 u |
28 u |
Number of yellow pencils is the repeated identity.
Make the number of yellow pencils the same.
LCM of 3 and 4 = 12
Number of brown pencils
= 28 u - 12 u - 3 u
= 13 u
Fraction of the pencils that is brown
=
1328 Answer(s):
1328