Age Problems( Week 32 Evaluation) 1. Kevin is 9 years older than Nancy who is 4 years older than David. If their ages add up to 20, how old is David? 2. A father had his son at his 40's. Now, the ages of the father and his son add up to 99 and the son's age is the father's age reversed. How old are they? Type the age numbers separated by a comma. 3. Josh is 4 times the age of Hillary who is 7 years younger than Rene. If the total age of the three is 55, how old is Rene? 4. Kevin is 3 years older than Nancy who is 5 years older than David. If their ages add up to 40, how old is Kevin? 5. Nancy is 3 times as old as David was 4 years ago. Nancy will be 13 years old after 4 years. How old is David this year? 6. A father is 47 years old this year. He has three sons. Their ages are 10, 12, and 17. In how many years will the father's age be equal to the sum of his three sons' ages? 7. Two people were born on the same day. One was born in 2001 and the other was born in 2021. In what year will one of them be twice as old as the other one? 8. 4 years ago, Morgan was 4 times as old as Steve. 4 years from now, the sum of their ages will be 21. How old is Morgan this year? 9. The average age of the four people is 20 years old. Among the four people, no one is younger than or equal to 17 years old, and their ages are different. What is the oldest possible age among them? 10. Hillary is 3 years old, and David is 15 years old. In how many years will David's age be 3 times Hillary's age? |