Emma has 3 times as many pencils as Nora. Nora has
23 as many pencils as Pamela. If the three of them have a total of 33 pencils, how many pencils does Emma have?
Emma |
Nora |
Pamela |
3x2 |
1x2 |
|
|
2x1 |
3x1 |
6 u |
2 u |
3 u |
The number of pencils that Nora has is repeated. Make the number of pencils that Nora has the same. LCM of 1 and 2 is 2.
Total number of pencils that the three of them have
= 6 u + 2 u + 3 u
= 11 u
11 u = 33
1 u = 33 ÷ 11 = 3
Number of pencils that Emma has
= 6 u
= 6 x 3
= 18
Answer(s): 18