Nicole and Tim collect pencils and buttons. Tim has 70 less pencils than buttons. Tim has 5 times the number of pencils Nicole has, and Nicole has 30% more buttons than Tim. After Nicole gives Tim all of her pencils and Tim gives Nicole 60% of his buttons, Tim has 36 less buttons than pencils. Find the number of buttons Nicole has at first.
Nicole |
Tim |
Buttons |
Pencils |
Buttons |
Pencils |
6.5 u + 91 |
1 u |
5 u + 70 |
5 u |
+ 3 u + 42 |
- 1 u |
- 3 u - 42 |
+ 1 u |
9.5 u + 133 |
0 |
2 u + 28 |
6 u |
100%+ 30% = 130%
130% x 5 u
=
130100 x 5 u
= 6.5 u
130% x 70
=
130100 x 70
= 91
60% x 5 u
=
60100 x 5 u
= 3 u
60% x 70
=
60100 x 70
= 42
If another 36 buttons are given to Tim, he will have equal number of buttons and pencils in the end.
6 u = 2 u + 28 + 36
6 u - 2 u = 64
4 u = 64
1 u = 64 ÷ 4 = 16
Number of buttons that Nicole has at first
= 6.5 u + 91
= 6.5 x 16 + 91
= 104 + 91
= 195
Answer(s): 195