Will You Solve These 15 Tricky Problems?
How many years ago was Oscar three times the age of his son Dan? 41 21 31 12 On the first day of the month, I kept a dollar in my piggy bank. On the second, I kept two dollars and on the third, I kept three and so on. On my birthday, I had a total of 276 dollars in my piggy bank.
15 Qs