There are 25% more green buttons than pink buttons in a bag. After Will removed 20% of the green buttons and increased the number of pink buttons by 10%, there are now 24 fewer green buttons than pink buttons. Find the number of pink buttons at first.
|
Green |
Pink |
Before |
5 u |
4 u |
Change |
- 1 u |
+ 0.4 u |
After |
4 u |
4.4 u |
Number of green buttons in percentage
= 100% + 25%
= 125%
125% =
125100 =
54Number of green buttons that Will removed
= 20% x 5 u
=
20100 x 5 u
= 1 u
Number of pink buttons that Will increased
= 10% x 4 u
=
10100 x 4 u
= 0.4 u
Number of green buttons in the end
= 5 u - 1 u
= 4 u
Number of pink buttons in the end
= 4 u + 0.4 u
= 4.4 u
Number of fewer green buttons than pink buttons in the end
= 4.4 u - 4 u
= 0.4 u
0.4 u = 24
1 u = 24 ÷ 0.4 = 60
Number of pink buttons at first
= 4 u
= 4 x 60
= 240
Answer(s): 240