PSLE Abi has a number of pens in three colours: green, yellow and blue.
211 of the pens are green. The number of green pens is four times the number of yellow pens. What fraction of the pens is blue?
Green |
Yellow |
Blue |
Total |
2x2 |
9x2 |
11x2 |
4x1 |
1x1 |
|
|
4 u |
1 u |
17 u |
22 u |
Number of green pens is the repeated identity.
Make the number of green pens the same.
LCM of 2 and 4 = 4
Number of blue pens
= 22 u - 4 u - 1 u
= 17 u
Fraction of the pens that is blue
=
1722 Answer(s):
1722