Logical Puzzles

9. If the price off a dress was cut by 20% for a sale, by what percentage off the sale price must it be increased by to resell it at the original price?
25 %
10. There is a number which is very peculiar. This number is three times the sum of its digits. Can you find the number ?
The number is 27.
2 + 7 = 9
9 x 3 = 27.
11. There is a number which is greater than the aggregate of its third, tenth and the twelfth parts by 58. Can you find the number?
The number is 120.