Fanny has 3 times as many pencils as Abi. Abi has
34 as many pencils as Emily. If the three of them have a total of 128 pencils, how many pencils does Fanny have?
| Fanny |
Abi |
Emily |
| 3x3 |
1x3 |
|
| |
3x1 |
4x1 |
| 9 u |
3 u |
4 u |
The number of pencils that Abi has is repeated. Make the number of pencils that Abi has the same. LCM of 1 and 3 is 3.
Total number of pencils that the three of them have
= 9 u + 3 u + 4 u
= 16 u
16 u = 128
1 u = 128 ÷ 16 = 8
Number of pencils that Fanny has
= 9 u
= 9 x 8
= 72
Answer(s): 72
