Jen, Hazel and Nora have 240 buttons. Jen has
35 as many buttons as Hazel. Nora's buttons is
15 of the total number of Jen's and Hazel's buttons. How many buttons must Hazel give to Nora so that both Jen and Nora will have the same number of buttons?
Jen |
Hazel |
Nora |
Total |
5x8 = 40 u |
1x8 = 8 u |
|
3x5 = 15 u |
5x5 = 25 u |
|
|
15 u |
25 u |
8 u |
240 |
Total number of buttons
= 15 u + 25 u + 8 u
= 48 u
48 u = 240
1 u = 240 ÷ 48 = 5
Jen |
Hazel |
Nora |
Total |
15 u |
25 u |
8 u |
240 |
|
- 7 u |
+ 7 u |
|
15 u |
18 u |
15 u |
240 |
Number of buttons that Hazel must give to Nora
= 15 u - 8 u
= 7 u
= 7 x 5
= 35
Answer(s): 35