Consider statements below.
1. The price doubled
2. The price is 150% of the price before
3. The price was reduced by a quarter
4. The price became a half of what it was before
5. The price increased by one third
6. The price is now 1.5 of what it was before
7. The price now is 66 2 3 % of what it was before
8. The price now is 200% of what it was before
9. The price is 75% of what it was before
10. The price increased by a half of what it was before
Which statement(s) is(are) equivalent to the "price increased by 50%"?