Question 19
How many statements are correct?
1. Your age on your birthday in 2019 plus your birth year must equal 2019.
2. If today is Monday, then 50 days later it will again be Monday.
3. If we multiply 13 by 8 and then add 13, the result must be odd.
4. If the sum of the ages of three people is odd, their age sum one year later must be even.
The source English says “on your birthday”, but its Vietnamese omits that condition. Both versions here use the birthday condition. Ages are counted in completed years, with each person one year older after one year.
1. Your age on your birthday in 2019 plus your birth year must equal 2019.
2. If today is Monday, then 50 days later it will again be Monday.
3. If we multiply 13 by 8 and then add 13, the result must be odd.
4. If the sum of the ages of three people is odd, their age sum one year later must be even.
The source English says “on your birthday”, but its Vietnamese omits that condition. Both versions here use the birthday condition. Ages are counted in completed years, with each person one year older after one year.