PSLE Tammy has a number of pencils in three colours: purple, yellow and blue.
59 of the pencils are purple. The number of purple pencils is four times the number of yellow pencils. What fraction of the pencils is blue?
Purple |
Yellow |
Blue |
Total |
5x4 |
4x4 |
9x4 |
4x5 |
1x5 |
|
|
20 u |
5 u |
11 u |
36 u |
Number of purple pencils is the repeated identity.
Make the number of purple pencils the same.
LCM of 5 and 4 = 20
Number of blue pencils
= 36 u - 20 u - 5 u
= 11 u
Fraction of the pencils that is blue
=
1136 Answer(s):
1136